NITECORE | Dual-Core Metallic Keychain Light 700 Lumens Black | TIP SEUtilizes two OSRAM P8 LEDs with a max output of 700 lumens Uses a total reflective optic lens for uniform and soft lighting Built in 500mAh Li ion battery with a USB C charging port 2 user modes: DEMO and DAILY Easily operable dual switch design 4 brightness levels including direct access to turbo and low Intelligent memory function Constant current circuit provides a stable output and prevents PWM Incorporated advanced temperature regulation module