Brand: UltraFire Model: WF-501B Emitter Brand/Type: Cree Emitter BIN: XPG-WCR5 Color BIN: White Total Emitters: 1 Battery Configurations: 1 x 18650 / 2 x 16340 rechargeable battery(not included) Voltage Input: 3.3~8.4V 8.4V max Switch Type: Clicky/Clickie Switch Location: Tail-cap Modes: 5 Mode Memory: Circuitry Features Mode Memory Mode Arrangement: Hi > Mid > Lo > Fast Strobe > Slow Strobe Circuitry: Digital Regulated 1000mA Current Output Brightness: 320 lumens maximum brightness (manufacturer rated) Runtime: 50 minutes (manufacturer rated) Lens: Coated Glass Lens Reflector: Aluminum Textured/OP Reflector Carrying Clip: - Carrying Strap: Strap Included