Fenix TK15C Multi-Color LED Waterproof Torch Flashlight, Black Utilizes Cree XP-G2 R5 LED fand Philips LUXEON Z LED with a lifespan of 50,000 hours Flashing Red/Green warning signals, with red and green alternatively 400 Maximum Lumen output Side switch on the head for output selection Intelligent memory circuit (automatically enters previous brightness level when turned on again)