Lumintop BLF GT94 20000lm flashlight review: Pros and Cons

4 x Luminus SBT90.2 LEDs
20000 lm output
1500000 cd intensity
8 x 18650 Li-Ion batteries

The Lumintop BLF GT94 flashlight released in 2020. It uses 4 x Luminus SBT90.2 LEDs, SMO reflector and 8 x 18650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 20000 lm output, 1500000 cd intensity, and a beam distance of 2449 m.

Table of Contents

The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage. If you found an error or something lacking in the specifications for the Lumintop BLF GT94, then tell us.

Lumintop BLF GT94 / BLFGT94

The BLF GT94 is an impressive flashlight that offers both power and reliability. Its robust build and outstanding illumination make it a versatile lighting instrument. The BLF GT94's mode memory makes the user experience more seamless and intuitive. It has a strobe function, which is one of the most effective self defense tools available.

Lumintop BLF GT94 specifications

NameBLF GT94
Rated 3 / 5 based on 1234 user votes.

Flashlights let you navigate in the dark. They help you find supplies and signal for help. They also provide comfort and security in tough times.

Lumintop BLF GT94 / 4

Body, materials, weight, colors

Weight2600 g
Length318 mm
Head diameter135 mm
Materialaluminium alloy with HAIII hard-anodized finish

The flashlight is a bit heavy, its weight is 2600 g. The best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. Aluminium is a lightweight material, which is beneficial for BLF GT94 flashlight. HAIII is a specific anodizing process. It creates a thicker and harder oxide layer than regular anodizing. This flashlight comes in a sleek black color option.

Lumintop BLF GT94 / 1

System, LED, lens, reflector

Emitter4 x Luminus SBT90.2 LEDs
Color temperature5700 K
LensAR coated glass
Switchelectronic side

Luminus is a US-based LED manufacturer. In the lighting industry, it has gained recognition as reputable. Color temperature is a characteristic of light. It is used to quantify the color appearance of light sources. Flashlights use the smooth reflector when long-range light is important. This includes searchlights and thrower flashlights. The AR coating of the lens helps to reduce these reflections. It does this by changing the lens surface's refractive index. The flashlight has electronic switches. They have many benefits and extra features compared to mechanical switches.

Lumintop BLF GT94 / 5

Performance, flux, intensity, throw

Flux20000 lm
Intensity1500000 cd
Throw2449 m
CD/LM factor75

Bright flashlights are often larger and heavier. This is because they have more LEDs, better cooling, and bigger batteries. 1500000 cd represents an extraordinarily high level of brightness. The throw distance is the farthest distance the flashlight can light an object. The cd/lm factor is the candela-to-lumen ratio. It shows how concentrated a light source's output is.

Lumintop BLF GT94 / 3

Software, user interface, modes

Mode memoryyes
Ramping modeyes

NarsilM offers many customization options. They let users tailor the flashlight to their needs. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. It stays in that mode when you turn it on again. The BLF GT94 flashlight has ramping mode. Its user interface lets you control the brightness by pressing and holding a button. Designers created the strobe function to produce a disorienting or attention-grabbing effect. The SOS code starts three short signals. Then, three long signals follow. Finally, there are three short signals again.

Lumintop BLF GT94 / 2

Features, battery, protections

Battery8 x 18650 Li-Ion batteries
Battery indicatoryes
Charger portno
Thermal regulationyes

The Lumintop BLF GT94 flashlight is powered by 8 x 18650 Li-Ion batteries. The battery indicator prevents surprise power failures. It ensures the flashlight is ready when needed. The BLF GT94 doesn't have charger port. LVP (Low Voltage Protection) is designed to protect the battery. It stops over-discharging, which can reduce battery life or cause permanent damage. The built-in thermal control adjusts brightness output to prevent overheating.

The "6" in the IP65 rating shows the level of protection. It's against solid objects, like dust and foreign particles. The IP65 rating indicates that the flashlight has a protection against water jets.

Lumintop BLF GT94 / 6

Accessories, package contents

Package contentshandle

According to the ANSI/NEMA FL1 Standard, we measure the performance of the BLF GT94 flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

Conclusion, pros and cons

This Lumintop flashlight, like any other, has its strengths and weaknesses. Let's take a close look at both sides to understand this flashlight better. I share my thoughts on its standout features and the parts that might need improvement. Keep in mind, these are just my opinions, and you might have a different perspective.


  • aluminium body
  • AR coated lens
  • side switch
  • extremely powerful
  • extremely bright
  • NarsilM firmware
  • mode memory
  • ramping mode
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • low-voltage protection
  • thermal regulation
  • dust protected
  • waterproof


  • too heavy
  • no built-in charger
  • no auxiliary LEDs
  • non-magnetic


Lumintop BLF GT94 / BLFGT94 photo 1.
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Lumintop BLF GT94 / BLFGT94 photo 4.
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Lumintop BLF GT94 / BLFGT94 photo 6.
Lumintop BLF GT94 / BLFGT94 photo 7.
Lumintop BLF GT94 / BLFGT94

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David Hagon
I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.
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