EdisonBright Fenix PD12 360 Lumen CREE XM-L2 T6 LED high-output EDC Flashlight with CR123A Lithium Battery Max 360 Lumen output using Cree XM-L2 (T6) neutral white LED with a lifespan of 50,000 hours Use one 3V CR123A battery 81mm (3.18") Length x 25.4mm (1") (Head Diameter) Side switch on the head for simple and convenient operation Bundle includes EdisonBright CR123A battery