{"id":5150,"date":"2025-04-02T09:16:06","date_gmt":"2025-04-02T00:16:06","guid":{"rendered":"https:\/\/aireviewirush.com\/?p=5150"},"modified":"2025-04-02T09:16:07","modified_gmt":"2025-04-02T00:16:07","slug":"nitecore-nu27-headlamp-evaluation-zeroair-critiques","status":"publish","type":"post","link":"https:\/\/aireviewirush.com\/?p=5150","title":{"rendered":"Nitecore NU27 Headlamp Evaluation &#8211; ZeroAir Critiques"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div itemprop=\"text\">\n<p>The Nitecore NU27 headlamp has impartial, heat, and funky white emitters in a single light-weight package deal. There\u2019s USB-C charging and a easy person interface. Learn on!<\/p>\n<hr\/>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_53 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-6a2e7bdbbc57a\" ><span class=\"\"><span style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-6a2e7bdbbc57a\"  type=\"checkbox\" id=\"item-6a2e7bdbbc57a\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Official_Specs_and_Options\" title=\"Official Specs and Options\">Official Specs and Options<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Variations\" title=\"Variations\">Variations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Worth\" title=\"Worth\">Worth<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#What%E2%80%99s_Included\" title=\"What\u2019s Included\">What\u2019s Included<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Bundle_and_Handbook\" title=\"Bundle and Handbook\">Bundle and Handbook<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Construct_High_quality_and_Disassembly\" title=\"Construct High quality and Disassembly\">Construct High quality and Disassembly<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Dimension_and_Comps\" title=\"Dimension and Comps\">Dimension and Comps<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Retention_and_Carry\" title=\"Retention and Carry\">Retention and Carry<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Energy_and_Runtime\" title=\"Energy and Runtime\">Energy and Runtime<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Charging\" title=\"Charging\">Charging<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Modes_and_Currents\" title=\"Modes and Currents\">Modes and Currents<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Pulse_Width_Modulation\" title=\"Pulse Width Modulation\">Pulse Width Modulation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Consumer_Interface_and_Operation\" title=\"Consumer Interface and Operation\">Consumer Interface and Operation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#LED_and_Beam\" title=\"LED and Beam\">LED and Beam<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#LED_Shade_Report_CRI_and_CCT\" title=\"LED Shade Report (CRI and CCT)\">LED Shade Report (CRI and CCT)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Beamshots\" title=\"Beamshots\">Beamshots<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Tint_vs_BLF-348_KillzoneFlashlightscom_219b_model_affiliate_hyperlink\" title=\"Tint vs BLF-348 (KillzoneFlashlights.com 219b model) (affiliate hyperlink)\">Tint vs BLF-348 (KillzoneFlashlights.com 219b model) (affiliate hyperlink)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Abstract_and_Conclusion\" title=\"Abstract and Conclusion\">Abstract and Conclusion<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#The_Large_Desk\" title=\"The Large Desk\">The Large Desk<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#What_I_like\" title=\"What I like\">What I like<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#What_I_don%E2%80%99t_like\" title=\"What I don\u2019t like\">What I don\u2019t like<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/aireviewirush.com\/?p=5150\/#Notes\" title=\"Notes\">Notes<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"official-specs\"><span class=\"ez-toc-section\" id=\"Official_Specs_and_Options\"><\/span>Official Specs and Options<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Right here\u2019s <a href=\"https:\/\/shrsl.com\/4v8up\" target=\"_blank\" rel=\"noopener\">a referral hyperlink to the Nitecore NU27 headlamp product web page<\/a>.<\/p>\n<h2 id=\"versions\"><span class=\"ez-toc-section\" id=\"Variations\"><\/span>Variations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are two variations of the Nitecore NU27 headlamp. One is Nitecore\u2019s commonplace black and yellow. The opposite is white and grey. They&#8217;re the identical value.<\/p>\n<h2 id=\"price\"><span class=\"ez-toc-section\" id=\"Worth\"><\/span>Worth<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The Nitecore NU27 headlamp sells for $44.95 and is obtainable now!<\/p>\n<hr\/>\n<h3 id=\"included\"><span class=\"ez-toc-section\" id=\"What%E2%80%99s_Included\"><\/span>What\u2019s Included<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113023 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-1024x683.jpg\" alt=\"Nitecore NU27 headlamp what's included\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<ul>\n<li>Nitecore NU27 headlamp<\/li>\n<li>Charging cable<\/li>\n<li>Carry baggie<\/li>\n<li>Handbook<\/li>\n<li>Second mount<\/li>\n<\/ul>\n<h3 id=\"manual-packaging\"><span class=\"ez-toc-section\" id=\"Bundle_and_Handbook\"><\/span>Bundle and Handbook<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-01.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113019 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-01-1024x683.jpg\" alt=\"Nitecore NU27 headlamp box\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-01-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-01-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-01-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-01-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-01.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-02.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113020 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-02-1024x683.jpg\" alt=\"Nitecore NU27 headlamp box\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-02-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-02-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-02-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-02-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-02.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-03.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113021 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-03-1024x683.jpg\" alt=\"Nitecore NU27 headlamp box\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-03-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-03-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-03-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-03-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-03.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-04.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113022 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-04-1024x683.jpg\" alt=\"Nitecore NU27 headlamp box\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-04-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-04-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-04-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-04-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-04.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-79.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113098 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-79-1024x763.png\" alt=\"Nitecore NU27 headlamp manual\" width=\"1024\" height=\"763\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-79-1024x763.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-79-300x224.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-79-768x573.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-79-1536x1145.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-79.png 1823w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-80.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113099 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-80-1024x767.png\" alt=\"Nitecore NU27 headlamp manual\" width=\"1024\" height=\"767\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-80-1024x767.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-80-300x225.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-80-768x575.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-80-1536x1150.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-80.png 1814w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<h3 id=\"build-quality\"><span class=\"ez-toc-section\" id=\"Construct_High_quality_and_Disassembly\"><\/span>Construct High quality and Disassembly<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-17.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113035 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-17-1024x683.jpg\" alt=\"Nitecore NU27 headlamp front\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-17-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-17-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-17-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-17-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-17.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>The Nitecore NU27 headlamp is constructed within the method of different latest Nitecore headlamps, such because the <a href=\"https:\/\/zeroair.org\/2024\/12\/24\/nitecore-hu2000-headlamp-review\/\" target=\"_blank\" rel=\"noopener\">HU2000<\/a>. The physique is totally plastic.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113044 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-1024x683.jpg\" alt=\"Nitecore NU27 headlamp switches\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>It\u2019s straightforward to take away the Nitecore NU27 headlamp from the headscarf. I like that characteristic, however there\u2019s no sensible objective for the sunshine off the headscarf (see notice beneath).<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-27.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113045 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-27-1024x683.jpg\" alt=\"Nitecore NU27 headlamp bottom and hinge\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-27-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-27-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-27-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-27-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-27.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113046 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-1024x683.jpg\" alt=\"Nitecore NU27 headlamp emitter array\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>One facet of the Nitecore NU27 headlamp is simply naked.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-29.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113047 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-29-1024x683.jpg\" alt=\"Nitecore NU27 headlamp side\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-29-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-29-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-29-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-29-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-29.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>The opposite facet homes the charging port.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-30.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113048 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-30-1024x683.jpg\" alt=\"Nitecore NU27 headlamp charging side\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-30-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-30-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-30-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-30-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-30.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<h3 id=\"size\"><span class=\"ez-toc-section\" id=\"Dimension_and_Comps\"><\/span>Dimension and Comps<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Dimensions L-2.58\u2033 x W-1.33\u2033 x H-1.00\u2033<br \/>Weight 1.98 oz<\/p>\n<p>\u00a0<\/p>\n<div id=\"gallery-1\" class=\"gallery galleryid-113121 gallery-columns-2 gallery-size-large\">\n<figure class=\"gallery-item\">\n<div class=\"gallery-icon landscape\">\n\t\t\t\t<a href=\"https:\/\/zeroair.org\/zeroair-reviews-nitecore-nu27-headlamp-15\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-15-1024x683.jpg\" class=\"attachment-large size-large\" alt=\"Nitecore NU27 headlamp on a two dollar bill\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-15-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-15-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-15-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-15-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-15.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a>\n\t\t\t<\/div>\n<\/figure>\n<figure class=\"gallery-item\">\n<div class=\"gallery-icon landscape\">\n\t\t\t\t<a href=\"https:\/\/zeroair.org\/zeroair-reviews-nitecore-nu27-headlamp-16\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-16-1024x683.jpg\" class=\"attachment-large size-large\" alt=\"Nitecore NU27 headlamp on a two dollar bill\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-16-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-16-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-16-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-16-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-16.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a>\n\t\t\t<\/div>\n<\/figure><\/div>\n<p>Right here\u2019s the Nitecore NU27 headlamp in hand.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-08.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113026 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-08-1024x683.jpg\" alt=\"Nitecore NU27 headlamp in hand\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-08-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-08-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-08-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-08-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-08.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<div id=\"gallery-2\" class=\"gallery galleryid-113121 gallery-columns-2 gallery-size-large\">\n<figure class=\"gallery-item\">\n<div class=\"gallery-icon landscape\">\n\t\t\t\t<a href=\"https:\/\/zeroair.org\/zeroair-reviews-nitecore-nu27-headlamp-09\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-09-1024x683.jpg\" class=\"attachment-large size-large\" alt=\"Nitecore NU27 headlamp in hand\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-09-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-09-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-09-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-09-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-09.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a>\n\t\t\t<\/div>\n<\/figure>\n<figure class=\"gallery-item\">\n<div class=\"gallery-icon landscape\">\n\t\t\t\t<a href=\"https:\/\/zeroair.org\/zeroair-reviews-nitecore-nu27-headlamp-10\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-10-1024x683.jpg\" class=\"attachment-large size-large\" alt=\"Nitecore NU27 headlamp in hand\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-10-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-10-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-10-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-10-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-10.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a>\n\t\t\t<\/div>\n<\/figure><\/div>\n<p>Right here\u2019s the take a look at mild with the venerable Convoy S2+. The model beneath is a customized laser-engraved Convoy S2+ host by GadgetConnections.com. I did a full submit\u00a0<a href=\"https:\/\/zeroair.org\/2023\/09\/21\/wavy-engraved-convoy-s2-flashlight-review\/\" target=\"_blank\" rel=\"noopener\">on an engraved orange host proper right here!<\/a>\u00a0Or go<a href=\"https:\/\/www.gadgetconnections.com\/products\/convoy-custom-laser-engraved-s2?utm_source=zeroair&amp;utm_medium=link&amp;utm_campaign=zeroair\" target=\"_blank\" rel=\"noopener\">\u00a0straight to GadgetConnections.com to purchase your Convoy S2+ now<\/a>!<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-11.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113029 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-11-1024x683.jpg\" alt=\"Nitecore NU27 headlamp with two standard sized flashlights \" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-11-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-11-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-11-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-11-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-11.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>Within the photograph above, chances are you&#8217;ll notice that the SRM (commonplace reference materials) flashlight for comparability has modified! I used a TorchLAB BOSS 35 for ages. Now what you possibly can see because the 18350 SRM is the Hanko Machine Works Trident. Whereas I&#8217;ve not reviewed or examined the Gunner Grip model seen right here, I&#8217;ve examined a\u00a0<a href=\"https:\/\/zeroair.org\/2020\/09\/04\/hanko-machine-works-total-tesseract-trident\/\" data-google-interstitial=\"false\" target=\"_blank\" rel=\"noopener\">Hanko Machine Works Trident Complete Tesseract<\/a>\u00a0in brass. I like the Trident, and it\u2019s a hanging distinction subsequent to the cheap Convoy S2+, which additionally makes an important commonplace reference materials.<\/p>\n<h3 id=\"retention\"><span class=\"ez-toc-section\" id=\"Retention_and_Carry\"><\/span>Retention and Carry<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The Nitecore NU27 headlamp is, in fact, a headlamp. The headscarf doesn\u2019t have an over-the-top band, but it surely\u2019s mild sufficient that there\u2019s no bounce.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-12.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113030 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-12-1024x683.jpg\" alt=\"Nitecore NU27 headlamp headband detail\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-12-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-12-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-12-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-12-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-12.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>The headscarf is stretchy material and there\u2019s a grippy silicone strip alongside there.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-13.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113031 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-13-1024x683.jpg\" alt=\"Nitecore NU27 headlamp headband detail\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-13-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-13-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-13-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-13-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-13.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>As acknowledged above, the Nitecore NU27 headlamp physique might be eliminated simply (however most likely not by accident) from the headscarf.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-14.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113032 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-14-1024x683.jpg\" alt=\"Nitecore NU27 headlamp headband detail\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-14-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-14-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-14-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-14-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-14.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-07.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113025 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-07-1024x683.jpg\" alt=\"Nitecore NU27 headlamp headband detail\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-07-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-07-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-07-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-07-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-07.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>The baggie is appropriate for carrying all components of the Nitecore NU27 headlamp.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-06.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113024 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-06-1024x683.jpg\" alt=\"Nitecore NU27 headlamp baggie\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-06-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-06-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-06-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-06-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-06.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>I didn\u2019t image it elsewhere, however this little plastic bit beneath can be utilized to clip the sunshine to a MOLLE or the invoice of a cap, for instance.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-113023\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-1024x683.jpg\" alt=\"Nitecore NU27 headlamp headband parts\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-05.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>It\u2019s a pleasant little attachment, for positive!<\/p>\n<h3 id=\"power\"><span class=\"ez-toc-section\" id=\"Energy_and_Runtime\"><\/span>Energy and Runtime<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Constructed into the Nitecore NU27 headlamp is an 850mAh (most likely) LiPO. We\u2019ll cowl the emitters later, however for no,w you possibly can see that the three choices carry out very equally.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113115 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96-1024x769.png\" alt=\"Nitecore NU27 headlamp runtime charts\" width=\"1024\" height=\"769\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96-1024x769.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96-300x225.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96-768x577.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96-1536x1153.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96-2048x1538.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>The chart above attracts consideration to the element that the <em>second<\/em> highest mode has the identical profile as the very best mode however lacks the little blip of highest output and positive factors <em>minutes<\/em> of runtime.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-97.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-113116\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-97-1024x753.png\" alt=\"Nitecore NU27 headlamp runtime charts\" width=\"1024\" height=\"753\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-97-1024x753.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-97-300x221.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-97-768x565.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-97-1536x1130.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-97-2048x1506.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-98.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-113117\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-98-1024x747.png\" alt=\"Nitecore NU27 headlamp runtime charts\" width=\"1024\" height=\"747\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-98-1024x747.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-98-300x219.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-98-768x561.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-98-1536x1121.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-98-2048x1495.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-99.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-113118\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-99-1024x747.png\" alt=\"Nitecore NU27 headlamp runtime charts\" width=\"1024\" height=\"747\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-99-1024x747.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-99-300x219.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-99-768x561.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-99-1536x1121.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-99-2048x1495.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-100.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-113119\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-100-1024x747.png\" alt=\"Nitecore NU27 headlamp runtime charts\" width=\"1024\" height=\"747\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-100-1024x747.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-100-300x219.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-100-768x561.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-100-1536x1121.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-100-2048x1495.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>Primarily based on the sharp cutoff, it\u2019s most likely secure to presume there\u2019s low voltage safety.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Charging\"><\/span>Charging<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The Nitecore NU27 headlamp costs by way of a USB-C port on the facet.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-31.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113049 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-31-1024x683.jpg\" alt=\"Nitecore NU27 headlamp charging port\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-31-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-31-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-31-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-31-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-31.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>Charging is a bit uncommon, however nonetheless effective. It completes in round 1.25 hours.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113120 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101-1024x769.png\" alt=\"Nitecore NU27 headlamp charging chart\" width=\"1024\" height=\"769\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101-1024x769.png 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101-300x225.png 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101-768x577.png 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101-1536x1153.png 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101-2048x1538.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>Off to the charging-port facet of the emitter array, there\u2019s a little bit 4-LED charging (and energy) indicator. It really works precisely as is logical \u2013 blinking various blue LEDs because the charging state will increase.<\/p>\n<h3 id=\"modes\"><span class=\"ez-toc-section\" id=\"Modes_and_Currents\"><\/span>Modes and Currents<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<tbody>\n<tr>\n<th style=\"text-align: center;\">Mode<\/th>\n<th style=\"text-align: center;\">Mode Claimed Output (lm)<\/th>\n<th style=\"text-align: center;\">Claimed Runtime<\/th>\n<th style=\"text-align: center;\">Measured Lumens<\/th>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Turbo \u2013 NW<\/td>\n<td style=\"text-align: right;\">600<\/td>\n<td style=\"text-align: center;\">\u2013<\/td>\n<td style=\"text-align: right;\">538 (0s)<br \/>520 (30s)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Excessive \u2013 NW<\/td>\n<td style=\"text-align: right;\">400<\/td>\n<td style=\"text-align: center;\">3h<\/td>\n<td style=\"text-align: right;\">356 (0s)<br \/>352 (30s)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Mid \u2013 NW<\/td>\n<td style=\"text-align: right;\">200<\/td>\n<td style=\"text-align: center;\">6h30m<\/td>\n<td style=\"text-align: right;\">177<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Low \u2013 NW<\/td>\n<td style=\"text-align: right;\">70<\/td>\n<td style=\"text-align: center;\">13h<\/td>\n<td style=\"text-align: right;\">61<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Ultralow \u2013 NW<\/td>\n<td style=\"text-align: right;\">6<\/td>\n<td style=\"text-align: center;\">57h<\/td>\n<td style=\"text-align: right;\">5.73<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Turbo \u2013 WW<\/td>\n<td style=\"text-align: right;\">600<\/td>\n<td style=\"text-align: center;\">\u2013<\/td>\n<td style=\"text-align: right;\">521 (0s)<br \/>508 (30s)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Excessive \u2013 WW<\/td>\n<td style=\"text-align: right;\">400<\/td>\n<td style=\"text-align: center;\">3h<\/td>\n<td style=\"text-align: right;\">350<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Mid \u2013 WW<\/td>\n<td style=\"text-align: right;\">200<\/td>\n<td style=\"text-align: center;\">6h30m<\/td>\n<td style=\"text-align: right;\">181<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Low \u2013 WW<\/td>\n<td style=\"text-align: right;\">70<\/td>\n<td style=\"text-align: center;\">13h<\/td>\n<td style=\"text-align: right;\">61<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Ultralow \u2013 WW<\/td>\n<td style=\"text-align: right;\">6<\/td>\n<td style=\"text-align: center;\">57h<\/td>\n<td style=\"text-align: right;\">5.6<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Turbo \u2013 CW<\/td>\n<td style=\"text-align: right;\">600<\/td>\n<td style=\"text-align: center;\">\u2013<\/td>\n<td style=\"text-align: right;\">526 (0s)<br \/>509 (30s)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Excessive \u2013 CW<\/td>\n<td style=\"text-align: right;\">400<\/td>\n<td style=\"text-align: center;\">3h<\/td>\n<td style=\"text-align: right;\">356<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Mid \u2013 CW<\/td>\n<td style=\"text-align: right;\">200<\/td>\n<td style=\"text-align: center;\">6h30m<\/td>\n<td style=\"text-align: right;\">178<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Low \u2013 CW<\/td>\n<td style=\"text-align: right;\">70<\/td>\n<td style=\"text-align: center;\">13h<\/td>\n<td style=\"text-align: right;\">63<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Ultralow \u2013 CW<\/td>\n<td style=\"text-align: right;\">6<\/td>\n<td style=\"text-align: center;\">57h<\/td>\n<td style=\"text-align: right;\">5.78<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Pulse_Width_Modulation\"><\/span>Pulse Width Modulation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Not any of the regular modes use PWM. The order right here is similar because the serial photographs beneath.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2019\/02\/baseline.jpg\" target=\"_blank\" rel=\"noopener\">Right here you possibly can see a \u201cbaseline\u201d<\/a> \u2013 a chart with nearly no mild hitting the sensor.<\/p>\n<p>Then there\u2019s the <a href=\"https:\/\/zeroair.org\/2020\/10\/02\/that-pwm-reference-light-the-ultrafire-wf-602c\/\" target=\"_blank\" rel=\"noopener\">Ultrafire WF-602C flashlight<\/a>, which has a few of the worst PWM I\u2019ve seen. It\u2019s so unhealthy that I <a href=\"https:\/\/zeroair.org\/2020\/10\/02\/that-pwm-reference-light-the-ultrafire-wf-602c\/\" target=\"_blank\" rel=\"noopener\">used a submit about it to clarify PWM<\/a>! Listed below are a number of timescales (<a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2021\/08\/zeroair_reviews_ultrafire_wf_602c_pwm_0.jpg\" target=\"_blank\" rel=\"noopener\">10ms<\/a>, <a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2021\/08\/zeroair_reviews_ultrafire_wf_602c_pwm_1.jpg\" target=\"_blank\" rel=\"noopener\">5ms<\/a>, <a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2021\/08\/zeroair_reviews_ultrafire_wf_602c_pwm_2.jpg\" target=\"_blank\" rel=\"noopener\">2ms<\/a>, <a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2021\/08\/zeroair_reviews_ultrafire_wf_602c_pwm_3.jpg\" target=\"_blank\" rel=\"noopener\">1ms<\/a>, <a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2021\/08\/zeroair_reviews_ultrafire_wf_602c_pwm_4.jpg\" target=\"_blank\" rel=\"noopener\">0.5ms<\/a>, <a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2021\/08\/zeroair_reviews_ultrafire_wf_602c_pwm_5.jpg\" target=\"_blank\" rel=\"noopener\">0.2ms<\/a>) to make evaluating this \u201cworst\u201d PWM mild to the take a look at mild simpler.\u00a0That submit additionally explains why I didn\u2019t take a look at the WF-602C on the standard 50us scale.<\/p>\n<h3 id=\"interface\"><span class=\"ez-toc-section\" id=\"Consumer_Interface_and_Operation\"><\/span>Consumer Interface and Operation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>There are two switches on the Nitecore NU27 headlamp. Under, the left (smaller) swap is the Mode swap, and the larger, extra textured swap is the facility swap. They\u2019re each e-switches. They&#8217;re on the highest (when the sunshine is worn correctly).<br \/><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26.jpg\" target=\"_blank\" rel=\"noopener\">\u00a0<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113044 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-1024x683.jpg\" alt=\"Nitecore NU27 headlamp dual switches\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-26.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<p>Right here\u2019s a person interface desk! For all the various choices, I\u2019ll say that the person interface is pretty comprehensible.<\/p>\n<table>\n<tbody>\n<tr>\n<th style=\"text-align: center;\">State<\/th>\n<th style=\"text-align: center;\">Motion<\/th>\n<th style=\"text-align: center;\">End result<\/th>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Off<\/td>\n<td style=\"text-align: center;\">Maintain Energy button<\/td>\n<td style=\"text-align: center;\">Impartial White on (reminiscence)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Off<\/td>\n<td style=\"text-align: center;\">Double click on Energy button<\/td>\n<td style=\"text-align: center;\">Ultralow Impartial White<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">On<\/td>\n<td style=\"text-align: center;\">Maintain energy button<\/td>\n<td style=\"text-align: center;\">Off<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">On<\/td>\n<td style=\"text-align: center;\">Click on mode button<\/td>\n<td style=\"text-align: center;\">Emitter coloration advance (NW&gt;WW&gt;CW)^<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">On<\/td>\n<td style=\"text-align: center;\">Click on mode button<\/td>\n<td style=\"text-align: center;\">Mode advance (Low &gt; Mid &gt; Excessive) of no matter CCT is energetic<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">On<\/td>\n<td style=\"text-align: center;\">Double click on energy button<\/td>\n<td style=\"text-align: center;\">Turbo of no matter CCT is energetic<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Turbo<\/td>\n<td style=\"text-align: center;\">Click on energy button<\/td>\n<td style=\"text-align: center;\">Earlier mode<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Off<\/td>\n<td style=\"text-align: center;\">Maintain Mode button<\/td>\n<td style=\"text-align: center;\">Regular Crimson<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Crimson<\/td>\n<td style=\"text-align: center;\">Press Energy button<\/td>\n<td style=\"text-align: center;\">Iterate between Crimson excessive and low<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Any<\/td>\n<td style=\"text-align: center;\">Double click on mode<\/td>\n<td style=\"text-align: center;\">SOS<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Any particular mode<\/td>\n<td style=\"text-align: center;\">Click on energy button<\/td>\n<td style=\"text-align: center;\">Particular mode advance (SOS &gt; Beacon &gt; Sluggish flashing)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Any particular mode<\/td>\n<td style=\"text-align: center;\">Double click on mode<\/td>\n<td style=\"text-align: center;\">Earlier mode<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Off<\/td>\n<td style=\"text-align: center;\">Maintain each<\/td>\n<td style=\"text-align: center;\">Lockout<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Lockout<\/td>\n<td style=\"text-align: center;\">Maintain each<\/td>\n<td style=\"text-align: center;\">Unlock to NW Ultralow<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>^ After 1 minute with no clicks in CW or WW, the following click on shall be NW.<\/p>\n<h3 id=\"LED-beam\"><span class=\"ez-toc-section\" id=\"LED_and_Beam\"><\/span>LED and Beam<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Nitecore says (proper there on the plastic lens cowl) that these are \u201cUHE LEDs.\u201d There are 4 openings, and apparently two emitters in every \u2013 one CW and one WW \u2013 with NW being achieved by mixing the 2.<\/p>\n<p><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-113046 size-large\" src=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-1024x683.jpg\" alt=\"Nitecore NU27 headlamp emitter array\" width=\"1024\" height=\"683\" srcset=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-1024x683.jpg 1024w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-300x200.jpg 300w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-768x512.jpg 768w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28-1536x1024.jpg 1536w, https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-28.jpg 1800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\/><\/a><\/p>\n<h3><span class=\"ez-toc-section\" id=\"LED_Shade_Report_CRI_and_CCT\"><\/span>LED Shade Report (CRI and CCT)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The declare is 3000K, 4500K, and 6500K, and that\u2019s pretty near the mark for all, aside from the cool white not coming in fairly as cool as claimed (that\u2019s good). CRI is low.<\/p>\n<p><strong>CCT<\/strong>\u00a0(Correlated Shade Temperature) refers back to the measurement of the colour look of sunshine, expressed in Kelvins (Okay), which signifies whether or not the sunshine is heat (yellowish) or cool (bluish). A decrease CCT (beneath 3000K) is taken into account heat mild, whereas a better CCT (above 5000K) provides cooler, bluish mild.<\/p>\n<p><strong>CRI<\/strong>\u00a0(Shade Rendering Index) is a measure of how precisely a lightweight supply renders colours compared to pure daylight. Scored on a scale from 0 to 100, larger CRI values point out that colours seem extra true to life and vibrant, just like how they&#8217;d look beneath the solar.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Beamshots\"><\/span>Beamshots<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>These beamshots all the time have the next settings:\u00a0 f8, ISO100, 0.3s shutter, and guide 5000K publicity. These photographs are taken at ground stage, and the beam hits the ceiling round 9 ft away.<\/p>\n<h3 id=\"tint\"><span class=\"ez-toc-section\" id=\"Tint_vs_BLF-348_KillzoneFlashlightscom_219b_model_affiliate_hyperlink\"><\/span>Tint vs BLF-348 (<a href=\"https:\/\/www.killzoneflashlights.com\/products\/killzone-flashlights-stainless-pen-light?ref=7\" target=\"_blank\" rel=\"noopener\">KillzoneFlashlights.com 219b model<\/a>) (affiliate hyperlink)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>I maintain the take a look at flashlight on the left and the BLF-348 reference flashlight on the precise. These photographs are taken round 18 inches from the door.<\/p>\n<p>I examine every little thing to the <a href=\"https:\/\/zeroair.org\/2018\/10\/22\/killzone-com-stainless-pen-light-blf-348-with-219b-flashlight-review\/\" target=\"_blank\" rel=\"noopener\">KillzoneFlashlights.com 219b BLF-348<\/a> as a result of it\u2019s cheap and has one of the best tint!<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Abstract_and_Conclusion\"><\/span>Abstract and Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The Nitecore NU27 headlamp is an effective little headlamp. It\u2019s a\u00a0<em>pretty<\/em> affordable value, too, for all of the emitter choices it provides. The person interface is straightforward sufficient, and when you\u2019ve used it sufficient, it&#8217;s <em>guessable.<\/em> I like not having to memorize person interfaces, and this headlamp offers that chance. I&#8217;d love for the output to be larger CRI, although. Charging works effectively!<\/p>\n<h3 id=\"table\"><span class=\"ez-toc-section\" id=\"The_Large_Desk\"><\/span>The Large Desk<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<tbody>\n<tr>\n<th style=\"text-align: center;\" colspan=\"2\"><a href=\"https:\/\/shrsl.com\/4v8up\" target=\"_blank\" rel=\"noopener\">Nitecore NU27 headlamp <\/a><\/th>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Emitter:<\/td>\n<td>UHE LEDs (NW)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Worth in USD at publication time:<\/td>\n<td>$44.95<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Cell:<\/td>\n<td>Inner<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" colspan=\"2\"><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-96.png\" target=\"_blank\" rel=\"noopener\">Runtime Graphs <\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">LVP?<\/td>\n<td>Sure<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Swap Kind:<\/td>\n<td>E-Swap<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Quiescent Present (mA):<\/td>\n<td>?<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">On-Board Charging?<\/td>\n<td>Sure<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Cost Port Kind:<\/td>\n<td>USB-C<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" colspan=\"2\"><a href=\"https:\/\/zeroair.org\/wp-content\/uploads\/2025\/03\/zeroair-reviews-nitecore-nu27-headlamp-101.png\" target=\"_blank\" rel=\"noopener\">Cost Graph <\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Energy off Cost Port<\/td>\n<td>all modes<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Claimed Lumens (lm)<\/td>\n<td>600<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Measured Lumens (at 30s)<\/td>\n<td>NW: 520 (86.7% of declare)^<br \/>WW: 508 (84.7% of declare)^<br \/>CW: 509 (84.8% of declare)^<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Candela per Lumen<\/td>\n<td>NW: 6.75<br \/>WW: 9.36<br \/>CW: 8.44<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Claimed Throw (m)<\/td>\n<td>123<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\"><a href=\"https:\/\/www.google.com\/search?q=%3D178*(4.918%5E2)\" target=\"_blank\" rel=\"noopener\">Candela (Calculated) in cd (at 30s)<\/a><\/td>\n<td>NW: 178lux @ 4.918m = 4305cd<br \/>WW: 130lux @ 5.18m = 3488cd<br \/>CW: 213lux @ 4.781m = 4869cd<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\"><a href=\"https:\/\/www.google.com\/search?q=%3Dsqrt(4305.2%2F0.25)\" target=\"_blank\" rel=\"noopener\">Throw (Calculated) (m)<\/a><\/td>\n<td>NW: 131.2 (106.7% of declare)^<br \/>WW: 118.1 (96% of declare)^<br \/>CW: 139.6 (113.5% of declare)^<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Claimed CCT<\/td>\n<td>NW: 4500<br \/>WW: 3000<br \/>CW: 6500<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Measured CCT Vary (Okay)<\/td>\n<td>NW: 4200-4400 Kelvin<br \/>WW: 3200-3300 Kelvin<br \/>CW: 5600-5900 Kelvin<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: right;\">Merchandise offered for evaluation by:<\/td>\n<td>Nitecore<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" colspan=\"2\"><a href=\"https:\/\/zeroair.org\/category\/Nitecore\" target=\"_blank\" rel=\"noopener\">All my Nitecore evaluations! <\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>^ Measurement disclaimer:\u00a0 Testing flashlights is my pastime. I exploit hobbyist-level tools for testing, together with some I made myself. Strive to not get buried within the particulars of producer specs versus measurements recorded right here; A specific amount of distinction (say, 10 or 15%) is completely affordable.<\/p>\n<h3 id=\"like\"><span class=\"ez-toc-section\" id=\"What_I_like\"><\/span>What I like<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Mild weight<\/li>\n<li>Versatile connection choices<\/li>\n<li>Charging works effectively<\/li>\n<li>Cheap person interface<\/li>\n<li>Provides NW, WW, and CW multi functional package deal!<\/li>\n<\/ul>\n<h3 id=\"dislike\"><span class=\"ez-toc-section\" id=\"What_I_don%E2%80%99t_like\"><\/span>What I don\u2019t like<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Low CRI<\/li>\n<li>Runtime drifts downward for length<\/li>\n<\/ul>\n<hr\/>\n<h2 id=\"notes\"><span class=\"ez-toc-section\" id=\"Notes\"><\/span>Notes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"cb_p6_patreon_button\" style=\"text-align:center !important;margin-top:15px;margin-bottom:15px;\">\n<p>Appreciated it? Take a second to help zeroair on Patreon!<\/p>\n<p><a rel=\"nofollow noopener\" href=\"https:\/\/www.patreon.com\/zeroair?utm_content=post_button&amp;utm_medium=patron_button_and_widgets_plugin&amp;utm_campaign=&amp;utm_term=&amp;utm_source=https:\/\/zeroair.org\/2025\/03\/26\/nitecore-nu27-headlamp-review\/\" aria-label=\"Click to become a patron at Patreon!\" target=\"_blank\"><img decoding=\"async\" style=\"margin-top: 10px;margin-bottom: 10px;max-width:200px;width:100%;height:auto;\" src=\"https:\/\/zeroair.org\/wp-content\/plugins\/patron-button-and-widgets-by-codebard\/images\/become_a_patron_button.png\" alt=\"Become a patron at Patreon!\"\/><\/a><\/div>\n<div class=\"sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-unloaded\" id=\"like-post-wrapper-155565265-113121-67eb88ae34798\" data-src=\"https:\/\/widgets.wp.com\/likes\/?ver=14.4.1#blog_id=155565265&amp;post_id=113121&amp;origin=zeroair.org&amp;obj_id=155565265-113121-67eb88ae34798\" data-name=\"like-post-frame-155565265-113121-67eb88ae34798\" data-title=\"Like or Reblog\">\n<h3 class=\"sd-title\">Like this:<\/h3>\n<p><span class=\"button\"><span>Like<\/span><\/span> <span class=\"loading\">Loading&#8230;<\/span><\/p>\n<p><span class=\"sd-text-color\"\/><a class=\"sd-link-color\"\/><\/div>\n<\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>The Nitecore NU27 headlamp has impartial, heat, and funky white emitters in a single light-weight package deal. There\u2019s USB-C charging and a easy person interface. Learn on! Official Specs and Options Right here\u2019s a referral hyperlink to the Nitecore NU27 headlamp product web page. Variations There are two variations of the Nitecore NU27 headlamp. One [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5152,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-5150","post","type-post","status-publish","format-standard","has-post-thumbnail","category-keyboard"],"_links":{"self":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts\/5150","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5150"}],"version-history":[{"count":1,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts\/5150\/revisions"}],"predecessor-version":[{"id":5151,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts\/5150\/revisions\/5151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/media\/5152"}],"wp:attachment":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5150"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5150"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5150"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}