Fenix HL23 150 Lumen light weight CREE XP-G2 R5 LED Headlamp (Champagne Gold color) with EdisonBright AA alkaline battery bundle 150 lumen using Cree XP-G2 R5 LED with a lifespan of 50,000 hours Uses one AA (Ni-MH, Alkaline) battery SIZE: 71mm38.9mm40mm2.79" 1.53"1.57") Fast, convenient all-in-one button switch Reverse polarity protection guards Made from durable aluminum alloy and plastic Bundle include EdisonBright AA battery in addition to battery inside package.