EdisonBright Bundle with Fenix HL35 450 Lumen LED Headlamp with 2X ARB-L14 type 14500 rechargeable li-ion batteries and 2 X AA Alkaline batteries Max 450 Lumens utilizes Cree XP-G2 R5 Neutral White LED with a lifespan of 50,000 hours Powered by two AA (Ni-MH/Alkaline) or 14500 Li-ion batteries Digitally regulated output maintains constant brightness Intelligent memory circuit, automatically enters previously used brightness level when turned on again This bundle includes 2X ARB-L14 type 14500 rechargeable li-ion batteries and 2 X EdisonBright AA Alkaline batteries