PowerTac Cadet Cree XP-G R5 LED Portable Tactical Flashlight 300 Lumen, 5 Modes with Strobe, Moonlight CREE XPG R5 LED 300 Lumen Brightness on High Uses 1 x CR123A or 1 x RCR123A Battery 4 Steady Illumination Functions & Strobe Mode 100+ Hours of Constant Run Time on Lowest Setting