Lumintop GT18 Flashlight Overview – ZeroAir Evaluations


The 7,000-lumen Lumintop GT18 flashlight boasts highly effective powerbank capabilities in addition to USB-C charging. The weird 46950 cell is included! Learn on!


Official Specs and Options

Right here’s a hyperlink to the Lumintop GT18 flashlight product web page.

Variations

There’s only one model of the Lumintop GT18 flashlight however it’s accessible in black (seen right here) or inexperienced.

Worth

The Lumintop GT18 flashlight is listed for $87.95 at lumintoponline.com.


What’s Included

Lumintop GT18 flashlight what's included

  • Lumintop GT18 flashlight
  • Lumintop 32,000mAh 46950
  • Charging cable
  • Spare o-rings (2)
  • Handbook

Package deal and Handbook

Lumintop GT18 flashlight box

Lumintop GT18 flashlight box

Lumintop GT18 flashlight manual

Construct High quality and Disassembly

Lumintop GT18 flashlight

The Lumintop GT18 flashlight is a hefty gentle. It’s huge – the 46950 cell defines that (46mm in diameter and 95mm lengthy). The sunshine is surprisingly not a lot larger than these dimensions. 

Construct high quality is nice, as you’d count on. Lumintop will not be a brand new model!

On the pinnacle finish is a big contact level for the optimistic terminal. It’s not a spring, however it’s springy. (The spring is below the bit you see under.) The tail finish (on the appropriate, under) doesn’t have a spring or something – simply naked aluminum for contacting the cell.
Lumintop GT18 flashlight showing head and tail

Each ends of the cell tube and all of the threads are unanodized.

Lumintop GT18 flashlight cell tube

Measurement and Comps

Measurement 59.5 X 53 X 156mm
Web Weight About 760g (battery included)

 

If the flashlight will headstand, I’ll present it right here. If the flashlight will tailstand, I’ll additionally present that right here too!

Lumintop GT18 flashlight in hand

Right here’s the take a look at gentle with the venerable Convoy S2+. The model under 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 picture above, it’s possible you’ll word that the SRM (normal reference materials) flashlight for comparability has modified! I used a TorchLAB BOSS 35 for ages. Now what you may 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 really like the Trident, and it’s a pleasant juxtaposition beside the cheap Convoy S2+, which I additionally love to make use of as an SRM.

Retention and Carry

Nothing is included for carrying the Lumintop GT18 flashlight. There’s no belt clip or holder or magnet or something. No lanyard loop is in-built, both (and no lanyard is included.)

Energy and Runtime

As acknowledged above, the Lumintop GT18 flashlight is powered by a single lithium-ion cell. Lumintop contains one – it’s a 32,000mAh 46950.

Lumintop GT18 flashlight with included cell

A 46950​ cell is gigantic – as acknowledged above, 46mm in diameter and 95mm lengthy. It’s only one cell, although, which is attention-grabbing. A light-weight this measurement usually has 4 18650 or three 21700 cells and runs at 12V (or so, relying on the setup). However the Lumintop GT18 flashlight runs on the voltage of 1 lithium-ion cell (3.7V nominal, 4.2V max).

The cell needs to be put in within the regular means – optimistic finish towards head.

Lumintop GT18 flashlight with included cell installed

The handbook states that output on the upper two ranges has a really temporary period, then output kicks right down to medium. That appears roughly correct in keeping with these assessments.

Lumintop GT18 flashlight runtime with included cell

Lumintop GT18 flashlight runtime with included cell

Lumintop GT18 flashlight runtime with included cell

Lumintop GT18 flashlight runtime with included cell

The Lumintop GT18 flashlight does shut off with low voltage safety.

Charging

Constructed-into the Lumintop GT18 flashlight is a USB-C charging port. It’s on the pinnacle, reverse to the e-switch.

Lumintop GT18 flashlight charging port open

I didn’t seize it within the picture however that little window above the charging port lights with blue LEDs when the sunshine is charging. There are 4 indicators, they usually work as you’d count on. At full cost, and whereas on a charger, they’re all regular blue.

A USB-A to USB-C cable is included.

Lumintop GT18 flashlight with included charging cable

Charging can proceed at 5V or 12V. 12V charging is fast for such a big capability (32,000mAh) cell. However once more, it’s an enormous (capability) cell, so nonetheless takes some time. Charging at 5V is a bit slower, taking round 12 hours.

Lumintop GT18 flashlight charging chart

Powerbank

The USB-C port that’s used for charging may also be used as a powerbank. Output is kind of nice, going as much as almost 4A (with possibly a major voltage drop). Nonetheless, that’s very excessive present output!

Lumintop GT18 flashlight powerbank chart

Should you settle right down to a extra cheap output of round 3.3A, the voltage recovers a bit (into the “in specification” vary). There’s a ton of vitality right here, so the sunshine will maintain 3A for almost 6 hours!

Lumintop GT18 flashlight powerbank chart

After that, the powerbank is actually depleted – it’ll attempt a few instances (seen under) however primarily shuts off round 3.2V

Lumintop GT18 flashlight powerbank chart

Modes and Currents

Mode Mode Claimed Output (lm) Claimed Runtime Measured Lumens Tailcap Amps
Turbo 7000-1500 30s+9h50m 5950 (0s)
4286 (30s)
6.64
Excessive 2800-1500 50s+9h50m 2895 (0s)
2817 (30s)
2.36
Medium 1500 10h 1421 1.06
Low 300 48h 187 0.41
Moonlight 3 60d 3.5 0.01

Pulse Width Modulation

Moonlight doesn’t use PWM, however the different modes do. Surprisingly, that features Turbo.

Right here you may see a “baseline” – a chart with nearly no gentle 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 dangerous that I used a submit about it to elucidate PWM! Listed below are a number of timescales (10ms, 5ms, 2ms, 1ms, 0.5ms, 0.2ms) to make evaluating this “worst” PWM gentle to the take a look at gentle simpler. That submit additionally explains why I didn’t take a look at the WF-602C on the regular 50us scale.

Consumer Interface and Operation

​Management of the Lumintop GT18 flashlight is thru a single e-switch. This change is on the facet of the pinnacle and might point out in each blue and inexperienced.

Lumintop GT18 flashlight e-switch detail

The change is nice!

Lumintop GT18 flashlight e-switch

Lumintop GT18 flashlight e-switch in green

Lumintop GT18 flashlight e-switch profile

Lumintop GT18 flashlight e-switch actuation

Right here’s a person interface desk!

State Motion End result
Off Click on On (Mode reminiscence, LMH solely)
Off Maintain Moonlight
On Click on Off
Moonlight, Excessive, or On Maintain Mode advance (LMH or HML, relying on the earlier route^)
On Double Click on Turbo
Turbo Double Click on No change (maintains turbo)
Off Click on 4x Lockout
Lockout Click on 4x (or loosen the pinnacle) Unlock
Lockout Maintain Momentary On
Off Click on 7x Iterate change lighting
Any Click on 3x Strobe
Strobe Click on 3x Strobe group advance (SOS > Beacon > Strobe)

^ That is very, very annoying.

LED and Beam

All Lumintop says about these eighteen emitters is that they’re “Excessive Efficiency LEDs.” They use a small aluminum reflector.

Lumintop GT18 flashlight emitter array

Lumintop GT18 flashlight emitter array

This setup gives a surprisingly tight beam profile, which I fairly like.

Lumintop GT18 flashlight emitters on

LED Shade Report (CRI and CCT)

There’s no declare relating to CCT, however I measured from the bottom to highest vary to be round 5700K to round 7000K (fairly cool). CRI can also be low, at someplace below 70.

Beamshots

These beamshots are all the time with the next settings:  f8, ISO100, 0.3s shutter, and handbook 5000K publicity. These pictures are taken at ground degree 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 appropriate. These pictures are taken round 18 inches from the door.

I evaluate every thing to the KillzoneFlashlights.com 219b BLF-348 as a result of it’s cheap and has the perfect tint!

Abstract and Conclusion

The Lumintop GT18 flashlight has an uncommon cell and an awesome beam profile. It’s good that the cell will not be in-built, and in addition included. The massive-capacity 46950 makes the Lumintop GT18 flashlight nice to be used as a powerbank, and the “reverse charging” has nice present capabilities.

The Massive Desk

Lumintop GT18 flashlight
Emitter: “Excessive Efficiency LED” x18 ((unspoken emitter))
Worth in USD at publication time: $87.95
Cell: 1×46950
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 with cell: all modes
with out cell and/or physique: lowest 2 modes (not less than)
Claimed Lumens (lm) 7000
Measured Lumens (at 30s) 4286 (61.2% of declare)^
Candela per Lumen 6.48
Claimed Throw (m) 400
Candela (Calculated) in cd (at 30s) 846lux @ 6.026m = 30721cd
Throw (Calculated) (m) 350.5 (87.6% of declare)^
Claimed CCT
Measured CCT Vary (Ok) 5700-7000 Kelvin
Merchandise offered for overview by: Lumintop
All my Lumintop 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 cheap.

What I like

  • Nice powerbank capabilities
  • Construct high quality
  • Full package deal
  • USB-C charging at 12V is fairly fast (for 32,000mAh)
  • Beam form (tighter than you’d count on!)

What I don’t like

  • Bizarre person interface when deciding on between low, medium, excessive
  • Very temporary output on excessive and turbo
  • Low CRI
  • Doesn’t hit goal output
  • Goal output on turbo and excessive may be very temporary

Notes

Preferred it? Take a second to assist zeroair on Patreon!

Become a patron at Patreon!

Related Articles

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Latest Articles