Fenix Hl50 LED Headlamps 365 Lumen Orange/black Utilizes Cree XM-L2 T6 neutral white LED with a lifespan of 50,000 hours Uses one 3V CR123ALithium battery or AA (Ni-MH, Alkaline) battery Digitally regulated output - maintains constant brightness Reverse polarity protection to protect from improper battery installation All-function switch in the head for easy and fast operation