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. 

Technical Description

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.

Characteristics:

• 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