Nitecore T4K flashlight review

4 x Cree XP-L2 V6 LEDs
4000 lm output
10900 cd intensity
integrated 1000 mAh Li-Ion battery

The Nitecore T4K flashlight was released in 2021. It uses 4 x Cree XP-L2 V6 LEDs, TIR reflector and integrated 1000 mAh Li-Ion battery. The powerful emitter in this flashlight provides up to 4000 lm output, 10900 cd intensity, and a beam distance of 209 m.

Want to know if the Nitecore made a really good flashlight? You'll find out by the end of our article!

Table of Contents

  • Nitecore T4K 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.

Nitecore T4K / T4K

The flashlight is a must-have tool for outdoor activities, it offers guidance and safety. TIR technology minimizes hotspots, dark spots, and irregularities in the beam of T4K. This light has 5 modes of lighting. The T4K mode memory eliminates the need to cycle through modes. It provides convenience and saves time. This USB rechargeable flashlight eliminates the need for disposable batteries.

Nitecore T4K specifications

Rated 4 / 5 based on 1348 user votes.

This flashlight can fit in pockets, backpacks, or glove compartments.

Nitecore T4K / 3

Body, materials, weight, colors

Weight77 g
Length82.3 mm
Head diameter29.2 mm
Materialaluminium alloy with HAIII hard-anodized finish

The T4K is small, compact, and designed for ultra-portability. The length of a flashlight can affect how it feels in your hand and how you can grip it. The aluminium body of the T4K has excellent thermal conductivity. The HAIII coating resists corrosion well. Factors can influence the color choice of the flashlight body.

Nitecore T4K / 1

System, LED, lens, reflector

Emitter4 x Cree XP-L2 V6 LEDs
Color temperature6500 K
Switchdual electronic side

Cree is widely regarded as a reputable LED manufacturer. Warm, white light is generally more comfortable. The TIR lens of the T4K can reduce light loss, it captures and redirects much of the emitted light. The electronic switches may have a higher chance of standby drain.

Nitecore T4K / 4

Performance, flux, intensity, throw

Flux4000 lm
Intensity10900 cd
Throw209 m
CD/LM factor2.73

The T4K flashlight has 4000 lm. It will provide an exceptionally bright and powerful beam of light. The T4K flashlight has 10900 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. Candela per lumen (cd/lm) measures a flashlight's beam intensity.

Nitecore T4K / 2

Software, user interface, modes

Modes5 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. The flashlight has mode memory. It remembers the mode you were using when the light was last turned off.

Features, battery, protections

Batteryintegrated 1000 mAh Li-Ion battery
Battery indicatorno
Charger portUSB Type-C
Thermal regulationyes
Impact resistance1 m
SpecialsOLED display

The T4K flashlight's power source is integrated 1000 mAh Li-Ion battery. USB rechargeable flashlights are more popular now. The flashlight detects when the battery's voltage has dropped to a certain level. The built-in thermal control adjusts brightness output to prevent overheating. The "5" in the IP54 rating shows the level of protection against solid objects. The T4K flashlight proudly boasts an exceptional impact resistance rating of 1 m.

Accessories, package contents

Package contentsclip

The clip is very helpful, it lets you quickly access your flashlight while keeping your hands free for other tasks.

Official sitehttps://flashlight.nitecore.com/

Conclusion, pros and cons

This Nitecore 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
  • body color options
  • TIR lens
  • side switch
  • strong flux
  • multiple modes
  • mode memory
  • integrated battery
  • USB charger
  • low-voltage protection
  • thermal regulation
  • dust protected
  • OLED display
  • clip


  • cool light
  • no battery indicator
  • no auxiliary LEDs
  • non-magnetic


Nitecore T4K / T4K photo 1.
Nitecore T4K / T4K photo 2.
Nitecore T4K / T4K photo 3.
Nitecore T4K / T4K photo 4.
Nitecore T4K / T4K photo 5.
Nitecore T4K / T4K


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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.