Lumintop GT Nano flashlight review

450 lm output
23400 cd intensity
1 x 10180 Li-Ion battery

The Lumintop GT Nano flashlight was released in 2020. It uses Osram KW CSLNM1.TG LED, SMO reflector and 1 x 10180 Li-Ion battery. The powerful emitter in this flashlight provides up to 450 lm output, 23400 cd intensity, and a beam distance of 306 m.

Curious to see if this flashlight impresses? Read on!

Table of Contents

  • Lumintop GT Nano specifications
    • Body, materials, weight, colors
    • System, LED, lens, reflector
    • Performance, flux, intensity, throw
    • Software, user interface, modes
    • Features, battery, protections
    • Accessories, package contents
    • Links
  • Conclusion, pros and cons
  • Photos
  • Comparisons

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.

Lumintop GT Nano / GTNano

The GT Nano flashlight offers a versatile lighting solution. The GT Nano's mode memory makes the flashlight start in your preferred or needed mode. The strobe function produces a high-frequency flashing light pattern. The USB charger port lets you charge this flashlight.

Lumintop GT Nano specifications

NameGT Nano
Rated 3 / 5 based on 1259 user votes.

This Lumintop flashlight is compact and handheld.

Lumintop GT Nano / 5

Body, materials, weight, colors

Weight17 g
Length52.5 mm
Body diameter14 mm
Head diameter24 mm
Materialaluminium alloy with HAIII hard-anodized finish

The flashlight is lightweight and easy to handle for most people. A smaller flashlight is easier to carry in a pocket, bag, or pouch. Aluminium is a lightweight material, which is beneficial for GT Nano flashlight. The HAIII process makes a hard and wear-resistant surface on the aluminum. The GT Nano flashlight is available in black.

Lumintop GT Nano / 1

System, LED, lens, reflector

EmitterOsram KW CSLNM1.TG LED
Color temperature6500 K
LensAR coated glass
Switchelectronic side

We know Osram LEDs for their high performance, energy efficiency, and reliability. The color temperature choice depends on the light's use and personal taste. The smooth reflector creates a well-defined hotspot at the center. The AR coating is thin and applied to the lens surface. Some flashlights with electronic switches have programmable features.

Lumintop GT Nano / 4

Performance, flux, intensity, throw

Flux450 lm
Intensity23400 cd
Throw306 m
CD/LM factor52

450 lm can provide a decent amount of brightness and be suitable for many everyday tasks. The GT Nano flashlight has 23400 cd, it can light objects at greater distances. The throw is the distance in meters at which the flashlight produces a light intensity of 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam.

Lumintop GT Nano / 6

Software, user interface, modes

Mode memoryyes
Ramping modeyes

NarsilM firmware includes thermal regulation. It monitors and adjusts the flashlight's output based on temperature. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off. The GT Nano flashlight has ramping mode. Its user interface lets you control the brightness by pressing and holding a button. The GT Nano flashlight has a strobe function, it produces a rapid, repetitive flashing of light. The SOS flashes Morse code so you can signal for help when needed.

Lumintop GT Nano / 2

Features, battery, protections

Battery1 x 10180 Li-Ion battery
Battery indicatoryes
Charger portmicroUSB
Thermal regulationyes
Impact resistance1 m

The GT Nano flashlight utilizes 1 x 10180 Li-Ion battery as its power source. A battery indicator lets users see the battery status. A flashlight's USB charger can be very useful. This is especially true in emergencies. This flashlight has built-in low voltage protection (LVP). It prevents damage from over-discharge. The built-in thermal control adjusts brightness output to prevent overheating. The "8" in the IPx8 rating means the highest level of protection. This flashlight has an impressive impact resistance rating of 1 m. It is built to endure accidental drops or impacts.

Lumintop GT Nano / 3

Accessories, package contents

Package contents10180 battery
2 x spare o-rings
microUSB cable
microUSB charger

The included battery lets you immediately use the flashlight for your desired applications. When gripping the flashlight with the lanyard around your wrist, it gives a more secure hold. Instead of searching for matching O-rings, having spare O-rings allows quick fixes.

Official sitehttps://lumintop.com/

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.


  • lightweight
  • aluminium body
  • AR coated lens
  • side switch
  • super bright
  • NarsilM firmware
  • mode memory
  • ramping mode
  • tactical strobe
  • SOS/beacon function
  • battery indicator
  • USB charger
  • low-voltage protection
  • thermal regulation
  • waterproof
  • battery included


  • cool light
  • moderated performance
  • no auxiliary LEDs
  • non-magnetic


Lumintop GT Nano / GTNano photo 1.
Lumintop GT Nano / GTNano photo 2.
Lumintop GT Nano / GTNano photo 3.
Lumintop GT Nano / GTNano photo 4.
Lumintop GT Nano / GTNano photo 5.
Lumintop GT Nano / GTNano photo 6.
Lumintop GT Nano / GTNano photo 7.
Lumintop GT Nano / GTNano


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Updated: April 23, 2024

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.