Nitecore T4K 4000lm In-depth review, Pros and Cons

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

The Nitecore T4K (T4K) 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.

The T4K flashlight offers a versatile lighting solution. 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. You don't have to do this each time you turn on the flashlight. It provides convenience and saves time. This USB rechargeable flashlight eliminates the need for disposable batteries. It offers a cheaper and more eco-friendly solution.

Nitecore T4K (T4K) pictures

Nitecore T4K / T4K photo 1.
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Nitecore T4K / T4K

We base the specifications below on the official data published by the manufacturer, while also considering user reviews. If you found an error or something lacking in the specifications for the Nitecore T4K, then tell us.

Nitecore T4K (T4K) specifications

Rated 3 / 5 based on 1232 user votes.

Flashlights are unlike ambient or overhead lights. They let you aim the light where you need it.


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 best flashlight size depends on personal preference. It also depends on intended use and the specific features you want. The aluminium body of the T4K has excellent thermal conductivity. This means it can effectively dissipate heat generated by the flashlight's components. The HAIII coating resists corrosion well. It shields the aluminum from moisture, humidity, and other corrosive elements. Factors can influence the color choice of the flashlight body. These include intended use, environment, personal style, and requirements.


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. It's also less harsh on the eyes than cool, white light. The TIR lens of the T4K can reduce light loss. To achieve high light output, it captures and redirects much of the emitted light. The electronic switches may have a higher chance of standby drain.


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. It compares this to its total luminous flux or output.


Modes5 modes
Mode memoryyes
Ramping modeno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences. 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.


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. It provides reliable, long-lasting energy for top performance. USB rechargeable flashlights are more popular now. They are popular because they are convenient and sustainable. The flashlight detects when the battery's voltage has dropped to a certain level. Then, it reduces or cuts off the power. The thermal protection feature helps prevent overheating. Overheating can harm the flashlight's performance, battery, and safety.

The "5" in the IP54 rating shows the level of protection against solid objects. It's for dust and foreign particles. The T4K flashlight proudly boasts an exceptional impact resistance rating of 1 m.


Package contentsclip

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

According to the ANSI/NEMA FL1 Standard, we measure the performance of the Nitecore T4K flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

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