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Nitecore T4K 4000 Lumen Super Bright EDC Flashlight
Nitecore T4K 4000 Lm Super Bright Keychain EDC Flashlight

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Price: $89.95

Availability: Usually Ships in 24 Hours
Product Code: FL-NITE-T4K



  • Max output of 4000 lumen
  • 5 brightness levels
  • OLED display to show brightness, battery level, etc.
  • Dual switch for easy single-handed operation
  • Built-in 1000mAh USB-C rechargeable battery

Included in the Box

  • T4K Keychain Light
  • USB-C charging cable
  • key clasp

WORLDS Brightest Keychain EDC Flashlight

This is your chance to own a superlative and carry it around every day. The Nitecore T4K is the world's most compact 4000 lumen (10 second burst) keychain light. That translates to over 228 yards of throw and illumination from a thumb-sized keychain light. The keyring has a built-in mechanical quick release design for fast deployment and usage. Additionally, with the included adjustable pocket clip, you have an ideal EDC companion. Here to stay is the intuitive dual button design with instant turbo making the T4K a must have accessory for any keychain, emergency kit, or outdoor set.

Familiar, Intuitive Operation

Here to stay is the simple dual button design with a power button for on and off, and a mode button to cycle through brightness settings. The mode button also doubles as a turbo switch. Whether the light is off or on, holding the mode button gets you instant turbo. With five brightness settings to cover all of your needs the T4K is a must have accessory for any keychain, emergency kit, or outdoor set.

USB-C Fast Charging

The Nitecore T4K's built-in USB-C fast charging fully juices the T4K in under 1.5 hours and provides over 67 hours of effective runtime per charge. The OLED display gives real-time information on battery level and charging status. If that's not enough, the two lockout functions further improve battery life and performance. With multiple built-in charging safeguards, IP54 weather resistant rating, and a 66 pound rated keyring the T4K is the definition of rugged.


Maximum Brightness4000 lumen
Peak Beam Distance228 yards
Peak Beam Intensity10900 cd
IP RatingIP54
Impact Resistance1 m


Turbo4000 lumen10 Second Burst
High200 lumen2 hr 45 min
Mid65 lumen7 hr
Low15 lumen21 hr
Ultralow1 lumen67 hr
Nitecore T4K
Nitecore T4K Night beam shots
Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 48 Write a review »

  2 of 2 people found the following review helpful:
4 of 5 Brightest flashlight yet August 5, 2021
Reviewer: Keith BKeith Bennett. from California  
Brightest! I would’ve actually given it a five star review, but because it gets too hot to hold you have to turn it off immediately after about 50 seconds of use.

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  1 of 1 people found the following review helpful:
5 of 5 July 26, 2021
Reviewer: Timothy Neal from Burgettstown, PA United States  

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  2 of 2 people found the following review helpful:
5 of 5 Perfect Camping Light July 23, 2021
Reviewer: Brad Griswold from Connecticut  
1) Solid metal construction with a built in low profile metal clip. Fits perfectly on a ballcap brim to use as a headlamp. Securely fastens and doesn't slide around or come off.

2) Brightness settings that are actually useful. Most of the time, I'm not looking for anything crazy - just some good ambient light around the campsite (1 lumen for the tent, 15 for sitting outside in the dark, 65 or 200 for a headlamp or handheld flashlight depending on how I'm trying to save battery. The 4000 lumens is great - see a pair of eyes staring back at you, Boom - completely illuminated and you can see what it is.

3) There is a true locking ability to the light so that it doesn't turn on in luggage or your bag - there is nothing worse than getting to a location with a dead flashlight. Also the "DEMO" mode where it turns off after 30 seconds offers a couple levels of protection so you don't end up with a dead light at your campsite. Love this functionality.

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  0 of 0 people found the following review helpful:
5 of 5 the best flashlight July 22, 2021
Reviewer: Ramirez from Alameda, CA  
i really love t4k 4000! because it helps me seeing better in the dark whenever i walk or look for something.. this shows why t4k 4000 is the best flashlight even a small but still powerful!

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  1 of 1 people found the following review helpful:
5 of 5 Bright as Stink June 28, 2021
Reviewer: Frank frank Ieraci from Canada  
She’s a bright light I had the original 1k and thought it was bright this thing is amazing.
It does get warm if you hold it on 4K for a bit
But so far love it. Would recommend

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