EdisonBright Fenix TK16 1000 Lumens Cree XM-L2 (U2) LED tactical Flashlight with 2 X CR123A Batteries Max output of 1000 Lumens uses Cree XM-L2 U2 LED with a lifespan of 50,000 hours. Powered by one 18650 rechargeable Li-ion battery or two 3V CR123A Lithium batteries Anti-roll, slip-resistant body design Tail mode switch for easy and fast output selection, instant Strobe mode This bundle includes 2 X EdisonBright CR123A Batteries