The Nitecore NU27 headlamp has impartial, heat, and funky white emitters in a single light-weight package deal. There’s USB-C charging and a easy person interface. Learn on!
Official Specs and Options
Right here’s a referral hyperlink to the Nitecore NU27 headlamp product web page.
Variations
There are two variations of the Nitecore NU27 headlamp. One is Nitecore’s commonplace black and yellow. The opposite is white and grey. They’re the identical value.
Worth
The Nitecore NU27 headlamp sells for $44.95 and is obtainable now!
What’s Included
- Nitecore NU27 headlamp
- Charging cable
- Carry baggie
- Handbook
- Second mount
Bundle and Handbook
Construct High quality and Disassembly
The Nitecore NU27 headlamp is constructed within the method of different latest Nitecore headlamps, such because the HU2000. The physique is totally plastic.
It’s straightforward to take away the Nitecore NU27 headlamp from the headscarf. I like that characteristic, however there’s no sensible objective for the sunshine off the headscarf (see notice beneath).
One facet of the Nitecore NU27 headlamp is simply naked.
The opposite facet homes the charging port.
Dimension and Comps
Dimensions L-2.58″ x W-1.33″ x H-1.00″
Weight 1.98 oz
Right here’s the Nitecore NU27 headlamp in hand.
Right here’s 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 on an engraved orange host proper right here! Or go straight to GadgetConnections.com to purchase your Convoy S2+ now!
Within the photograph above, chances are you’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’ve not reviewed or examined the Gunner Grip model seen right here, I’ve examined a Hanko Machine Works Trident Complete Tesseract in brass. I like the Trident, and it’s a hanging distinction subsequent to the cheap Convoy S2+, which additionally makes an important commonplace reference materials.
Retention and Carry
The Nitecore NU27 headlamp is, in fact, a headlamp. The headscarf doesn’t have an over-the-top band, but it surely’s mild sufficient that there’s no bounce.
The headscarf is stretchy material and there’s a grippy silicone strip alongside there.
As acknowledged above, the Nitecore NU27 headlamp physique might be eliminated simply (however most likely not by accident) from the headscarf.
The baggie is appropriate for carrying all components of the Nitecore NU27 headlamp.
I didn’t 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.
It’s a pleasant little attachment, for positive!
Energy and Runtime
Constructed into the Nitecore NU27 headlamp is an 850mAh (most likely) LiPO. We’ll cowl the emitters later, however for no,w you possibly can see that the three choices carry out very equally.
The chart above attracts consideration to the element that the second highest mode has the identical profile as the very best mode however lacks the little blip of highest output and positive factors minutes of runtime.
Primarily based on the sharp cutoff, it’s most likely secure to presume there’s low voltage safety.
Charging
The Nitecore NU27 headlamp costs by way of a USB-C port on the facet.
Charging is a bit uncommon, however nonetheless effective. It completes in round 1.25 hours.
Off to the charging-port facet of the emitter array, there’s a little bit 4-LED charging (and energy) indicator. It really works precisely as is logical – blinking various blue LEDs because the charging state will increase.
Modes and Currents
| Mode | Mode Claimed Output (lm) | Claimed Runtime | Measured Lumens |
|---|---|---|---|
| Turbo – NW | 600 | – | 538 (0s) 520 (30s) |
| Excessive – NW | 400 | 3h | 356 (0s) 352 (30s) |
| Mid – NW | 200 | 6h30m | 177 |
| Low – NW | 70 | 13h | 61 |
| Ultralow – NW | 6 | 57h | 5.73 |
| Turbo – WW | 600 | – | 521 (0s) 508 (30s) |
| Excessive – WW | 400 | 3h | 350 |
| Mid – WW | 200 | 6h30m | 181 |
| Low – WW | 70 | 13h | 61 |
| Ultralow – WW | 6 | 57h | 5.6 |
| Turbo – CW | 600 | – | 526 (0s) 509 (30s) |
| Excessive – CW | 400 | 3h | 356 |
| Mid – CW | 200 | 6h30m | 178 |
| Low – CW | 70 | 13h | 63 |
| Ultralow – CW | 6 | 57h | 5.78 |
Pulse Width Modulation
Not any of the regular modes use PWM. The order right here is similar because the serial photographs beneath.
Right here you possibly can see a “baseline” – a chart with nearly no mild hitting the sensor.
Then there’s the Ultrafire WF-602C flashlight, which has a few of the worst PWM I’ve seen. It’s so unhealthy that I used a submit about it to clarify PWM! Listed below are a number of timescales (10ms, 5ms, 2ms, 1ms, 0.5ms, 0.2ms) to make evaluating this “worst” PWM mild to the take a look at mild simpler. That submit additionally explains why I didn’t take a look at the WF-602C on the standard 50us scale.
Consumer Interface and Operation
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’re each e-switches. They’re on the highest (when the sunshine is worn correctly).
Right here’s a person interface desk! For all the various choices, I’ll say that the person interface is pretty comprehensible.
| State | Motion | End result |
|---|---|---|
| Off | Maintain Energy button | Impartial White on (reminiscence) |
| Off | Double click on Energy button | Ultralow Impartial White |
| On | Maintain energy button | Off |
| On | Click on mode button | Emitter coloration advance (NW>WW>CW)^ |
| On | Click on mode button | Mode advance (Low > Mid > Excessive) of no matter CCT is energetic |
| On | Double click on energy button | Turbo of no matter CCT is energetic |
| Turbo | Click on energy button | Earlier mode |
| Off | Maintain Mode button | Regular Crimson |
| Crimson | Press Energy button | Iterate between Crimson excessive and low |
| Any | Double click on mode | SOS |
| Any particular mode | Click on energy button | Particular mode advance (SOS > Beacon > Sluggish flashing) |
| Any particular mode | Double click on mode | Earlier mode |
| Off | Maintain each | Lockout |
| Lockout | Maintain each | Unlock to NW Ultralow |
^ After 1 minute with no clicks in CW or WW, the following click on shall be NW.
LED and Beam
Nitecore says (proper there on the plastic lens cowl) that these are “UHE LEDs.” There are 4 openings, and apparently two emitters in every – one CW and one WW – with NW being achieved by mixing the 2.
LED Shade Report (CRI and CCT)
The declare is 3000K, 4500K, and 6500K, and that’s pretty near the mark for all, aside from the cool white not coming in fairly as cool as claimed (that’s good). CRI is low.
CCT (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.
CRI (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’d look beneath the solar.
Beamshots
These beamshots all the time have the next settings: 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.
Tint vs BLF-348 (KillzoneFlashlights.com 219b model) (affiliate hyperlink)
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.
I examine every little thing to the KillzoneFlashlights.com 219b BLF-348 as a result of it’s cheap and has one of the best tint!
Abstract and Conclusion
The Nitecore NU27 headlamp is an effective little headlamp. It’s a pretty affordable value, too, for all of the emitter choices it provides. The person interface is straightforward sufficient, and when you’ve used it sufficient, it’s guessable. I like not having to memorize person interfaces, and this headlamp offers that chance. I’d love for the output to be larger CRI, although. Charging works effectively!
The Large Desk
| Nitecore NU27 headlamp | |
|---|---|
| Emitter: | UHE LEDs (NW) |
| Worth in USD at publication time: | $44.95 |
| Cell: | Inner |
| Runtime Graphs | |
| LVP? | Sure |
| Swap Kind: | E-Swap |
| Quiescent Present (mA): | ? |
| On-Board Charging? | Sure |
| Cost Port Kind: | USB-C |
| Cost Graph | |
| Energy off Cost Port | all modes |
| Claimed Lumens (lm) | 600 |
| Measured Lumens (at 30s) | NW: 520 (86.7% of declare)^ WW: 508 (84.7% of declare)^ CW: 509 (84.8% of declare)^ |
| Candela per Lumen | NW: 6.75 WW: 9.36 CW: 8.44 |
| Claimed Throw (m) | 123 |
| Candela (Calculated) in cd (at 30s) | NW: 178lux @ 4.918m = 4305cd WW: 130lux @ 5.18m = 3488cd CW: 213lux @ 4.781m = 4869cd |
| Throw (Calculated) (m) | NW: 131.2 (106.7% of declare)^ WW: 118.1 (96% of declare)^ CW: 139.6 (113.5% of declare)^ |
| Claimed CCT | NW: 4500 WW: 3000 CW: 6500 |
| Measured CCT Vary (Okay) | NW: 4200-4400 Kelvin WW: 3200-3300 Kelvin CW: 5600-5900 Kelvin |
| Merchandise offered for evaluation by: | Nitecore |
| All my Nitecore evaluations! | |
^ Measurement disclaimer: 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.
What I like
- Mild weight
- Versatile connection choices
- Charging works effectively
- Cheap person interface
- Provides NW, WW, and CW multi functional package deal!
What I don’t like
- Low CRI
- Runtime drifts downward for length
Notes
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