T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens
T4K - 4000 lumens

T4K - 4000 lumens

"AWESOME T4K! Used the T4K a number of times since I received it. Worked like a charm! Easy to use, dependable and consistently bright with good battery power! Not forgetting the comfortable form factor." - Joseph S.

The World's Most Powerful USB-C Rechargeable Pocket Light. Nothing Else Compares.

Flood Beam (20~100m)

Regular price $130.00 Sale price$123.00 Save $7.00
Tax included.
  • 100% No-Risk Money Back Guarantee
  • Door to Door Delivery + Easy Returns
  • Dedicated After-Sales Support
  • Street Safe Video Workshop ($388 value, FREE)

4000 lumens of pocket power, how to use your new T4K.

The World's Most Powerful USB-C Rechargeable Pocket Light. Nothing Else Compares.

This is Nitecore's most compact and powerful keychain. Made to fit the brightness of the sun in your palm.

  • 4000-lumen brightness
  • 7h runtime on 65 lumens
  • Real-time OLED Display
  • Deep pocket-carry clip for easy mounting
  • Quick release lanyard-loop (Included)
  • 1,000mAh Battery with quick USB-C built-in charger
  • IP54 rated (Weatherproof)

Pocket Keychain comparison with the T4K and other models.

Unparalleled size and performance compared to any keychain lights in the market.

BLINDING 4000 LUMEN TURBO - This amount of instant blinding brightness will disorientate anyone in front of you. Intended for momentary use, this is perfect for emergencies or wide-area illumination.

REAL-TIME OLED DISPLAY - Battery anxiety is no longer a worry for pocket lights. With real-time brightness and power display, there's no need to second guess how much run-time is left.

EASY ONE-HANDED OPERATION - No complex twisting, brightness can be changed with just one push of a thumb. Press and hold the mode switch for turbo or to cycle through the 4 brightness levels with short presses on the mode button when the light is turned on.

DEEP POCKET CARRY CLIP - Made with reliable usability in mind, using the deep pocket carry clip, the T4K can be mounted on a cap to use, enabling hands-free lighting with a simple clip-on. The deep pocket carry clip also acts as a strong fastener for the T4K when mounted to backpacks for all your user needs.

BUILT-IN QUICK CHARGE PORT - With high power, comes a need for fast charging. The T4K comes with a in-built 1,000mAh battery which will take approximately 90 minutes to charge, which is incredibly fast for a light this powerful and compact. Additionally for extended use, the T4K can be charged and used at the same time, making it a great option as an emergency or backup light.

READY FOR ANYTHING - Weatherproof and compact, the T4K can take on any situation Advanced Temperature Regulation (ATR) technology ensures optimal performance based on the environment's temperatures even for a compact carry.

The smallest, most powerful keychain light is here, it's the T4K.

Nitecore has been making lights for professionals and daily-carry users for some time now. Over 15 different international agencies have Nitecore as their standard issue. So they know exactly how their lights are used, the increasing challenges that people on the ground face and what's expected of reliable gear.

Now there are many, many lights that market themselves as compact and bright lights. If you're a new user, it's quite impossible to tell the difference lumens-wise. Most keychain lights feature brightness that's just merely usable but market themselves to be of super-high brightness. Additionally, they're not made for long run times or for small extensive uses where it counts.

The Nitecore T4K was made to be a bridge between heavy-duty lights and smaller portable keychain lights, the best of both worlds. With the size of a thumb and boasting the same brightness as our flagship light, the T4K is no doubt a must for anyone's everyday carry.

If you've been looking for the most powerful everyday-carry light for 2023, don't miss this bundle light with amazing bonus items.


10,990 cd
520 cd
140 cd
43 cd
1 67h


ANSI/PLATO FL 1 2019 Standard is a set of flashlight performance guidelines that confirms the light you're buying has been tested to spec, and you're not buying into false performance claims.


Lens Total Reflective Optics
Material T6061 T6 aircraft aluminum alloy
Finnish HA III Military Grade Hard Anodizing
Switch Dual Side Switch
IP Rating IP54 (Weatherproof)
Impact Resistance 1 m
82.3 mm / 3.24 in
29.2 mm / 1.15 in
Width 30 mm / 1.18 in
Weight 72 g / 2.72 oz
Download Instruction Manual (PDF)

What's In The Box

  • 1x T4K
  • 1x Key Clasp
  • Our 60-Day Ironclad Guarantee

    We believe in this product so strongly that we're giving you a 60 days money back guarantee!

    If you're not 100% satisfied with your purchase, ship the entire package back to us with your Order #number and we'll give you a full refund!

    What happens after payment?

    • You'll receive a purchase receipt via email after payment.
    • Your order will be processed within the next working day and we'll email you a tracking number once your package has been shipped.

    When will I receive my lights?

    • Local shipping will take 4-6 working days to your door via courier.
    • International shipping will take 10-14 working days.

    Returns and warranty

    • If our lights don't work the way they should, let us know and we'll do our best to get you sorted. 1~3 year replacement warranty.

    Do you know that we can deliver same day, and have a large selection of lights for every need?

    If you can't find what you are looking for, or need them on a specific date, do reach out to our team and we would be happy to assist you!

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