LuminTop GT3 Pro 27,000 Lumen Flashlight review – Turns night into day! Whoa!

We use affiliate links. If you buy something through the links on this page, we may earn a commission at no cost to you. Learn more.

LuminTop GS3 Pro flashlight 23

REVIEW –  I remember buying two dim red LEDs at Radio Shack as a young lad and I’ve loved them since. I have converted all of the lights and almost all of my flashlights to these luminescent wonders. I was thrilled to have a look at LuminTop’s GT3 Pro flashlight that’s capable of producing a dazzling 27,000 lumens. Please join me for a detailed look!

What is it?

The LuminTop GT3 Pro is a six to 27,000-lumen adjustable brightness flashlight with a built-in charger and USB port for charging external devices.

Hardware specs

  • Model: LuminTop GT3 Pro
  • Dimensions: 70 x 60 x 155mm (2.8 x 2.4 x 6.1 inches)
  • Weight: 610 grams (21.5 ounces) without batteries
  • Output: 6, 4000, 9000, and 27,000 lumens
  • Runtime:
    • 25 days @ 6 lumens
    • Two hours 50 minutes @ 4000 lumens
    • 40 seconds at brightest, then two hours 45 minutes @ 4000 lumens
    • 20 seconds at brightest, then two hours 40 minutes at 4000 lumens
  • Strobe, SOS, and beacon modes
  • Projection distance: Up to 707 meters (2320 feet)
  • Intensity: 125000cd max.
  • Impact resistance: 1 meter (39 inches)
  • Waterproof: IP68, underwater 2 meters (6.58 feet)
  • Light source: 3 x Cree XHP70.2 LEDs, 50,000 hour lifespan
  • Power: 365 watts maximum using four 21700 Li-ion flat-top batteries (maximum length 71mm)
  • Intelligent LED display displays rate of charge, battery capacity, voltage, and current.
  • Power bank function modes:
    • 3 to 5.9 volts @ 3 Amps
    • 3 to 11 volts @ 3 Amps
    • 3 to 21 volts @ 3 Amps
    • 3 to 21 volts at 5 Amps
  • Supports simultaneous charging and discharging
  • Overcharge, over-discharge, over-heat, and low voltage protected

What’s in the box?

  • LuminTop GT3 Pro flashlight
  • USB-C cable
  • Lanyard
  • Spare O-rings
  • User manual
  • For the review, FlashlightGo also provided four 21700 batteries and a charger.

LuminTop GS3 Pro flashlight 18

Design and features

I’m no stranger to LuminTop. They make a wide and capable range of flashlights for outdoor, everyday-carry, and bicycle use and cover a wide range of sizes and brightnesses. The GT3 Pro is one of their newest models and arrives in a nice-looking box.

LuminTop GS3 Pro flashlight 01

Great presentation!

LuminTop GS3 Pro flashlight 02

The LuminTop GT3 Pro flashlight is provided with a lanyard, spare o-rings, a USB-C cable, and an instruction manual. Thank you to FlashlightGo for additionally providing the batteries and power supply.

LuminTop GS3 Pro flashlight 12

The GT3 Pro is chunky and fits into the “Coke can” category. It’s about the same diameter as a 20-ounce soda bottle.

LuminTop GS3 Pro flashlight 03

To install the batteries, the tail unscrews. There are posts on the connection board to prevent incorrect alignment.

LuminTop GS3 Pro flashlight 06

The circuit board has bouncy springs that make contact with the negative (-) battery terminals and small posts for the positive (+). Matching springs are on the battery connection board in the tail. The four 21700 batteries load into the flashlight body.

LuminTop GS3 Pro flashlight 07

With the battery cover reinstalled, unscrewing the bottom cap reveals the USB-C input/output port. I was surprised to discover the LuminTop GT3 Pro can be used as a battery pack through the USB-C and USB-A ports. This is very slick! The total quick-charge capacity of 5 Amps is available when using a single port and switches to a lower current if both are being used.

LuminTop GS3 Pro flashlight 05

LuminTop GS3 Pro flashlight 04

Applying power for the first time was another surprise. There is a display that indicates the battery percentage, voltage, and current. Oh, so nice! It’s fabulous to see how much juice is still in the can. The button turns it on and off. Out of the box, the batteries were about 65% with full power reached in about 20 minutes.

LuminTop GS3 Pro flashlight 24

The lens is frosted so the beam is wide and free of shadowy artifacts.

LuminTop GS3 Pro flashlight 20

The sides have knurling for a good feel and non-slip grip.

LuminTop GS3 Pro flashlight 16

There’s even a 1/4-20 tripod mounting nut for static use.

LuminTop GS3 Pro flashlight 21

To activate the LuminTop GT3 Pro, there’s a backlit button. I love the LuminTop “bunny” logo!

LuminTop GS3 Pro flashlight 19

With the LuminTop GT3 Pro at full power, it’s ready to start testing. The small manual contains operating instructions.

LuminTop GS3 Pro flashlight 25

“Moonlight” mode is the only brightness that you should be tempted to look down the barrel of this beastie. Everything else and you’ll be seeing spots. Please don’t look into the beam – I did it once during testing and I can attest, it hurts.

LuminTop GS3 Pro flashlight 08

Moving up in intensity, it’s only fair to test the LuminTop GT3 Pro flashlight outside. At 9000 and 27,000 lumens, the flashlight automatically dims after 40 and 20 seconds respectively. Most super-bright flashlight modes are only needed for a few seconds, so I found these times acceptable and practical. I suspect the limits are due to thermal management because the head of the flashlight gets hot quickly at the higher settings. If the preset values don’t float your boat, holding the button ramps the brightness up or down. This is very well executed.

Here are beam shots of my backyard (all using 52mm at f2). The nearest trees are about 60 feet away. The furthest is about 250. The 6-lumen setting was too dim for comparison using the same camera settings but is enough for walking around in the dark.

4000 Lumens…

LuminTop GS3 Pro flashlight 13

9000 lumens…

LuminTop GS3 Pro flashlight 14

The 27,000-lumen level is insane!…

LuminTop GS3 Pro flashlight 15

 What I like

  • Insanely, night-into-day bright
  • Can be used as a battery pack
  • The LED display is excellent!

What I would change

  • Nothing

Final thoughts

LuminTop GS3 Pro flashlight 17

I have a few dozen flashlights in frequent rotation, but none come even remotely close to the fierce light the GT3 Pro blasts out. The smooth beam, practical and easy-to-learn user interface coupled with the ability to be used as a battery pack are fabulous features and I’m sure the LuminTop GT3 Pro flashlight will see plenty of use! Thank you LuminTop and FlashlightGo!

Price: $240.99
Where to buy: FlashlightGo
Source: The sample for this review was supplied by FlashlightGo

3 thoughts on “LuminTop GT3 Pro 27,000 Lumen Flashlight review – Turns night into day! Whoa!”

  1. Gadgeteer Comment Policy - Please read before commenting
  2. 27k lumens for a whole 20 seconds, I don’t understand the purpose. Would be like saying I have a car that will go from 0-250, accelerate to 250 for 20 seconds then drops to 40mph.

  3. The jump from moonlight to 4000 lumens is way too large. There should be intermediate settings like 100, 500, 1000, 2000.

  4. Maybe if it were an lcp.
    Basically all your really getting is a 4000 lumen flashlight for 200 bucks.
    No thank you.

Leave a Comment

Your email address will not be published. Required fields are marked *