Brand: UltraFire Model: WF501B Emitter Brand/Type: Cree Emitter BIN: MC-E Color BIN: Yellow White (4000K) Total Emitters: 1 Battery Configurations: 2*16340 / 1*18650 Rechargeable Battery (not included) Voltage Input: 3.2~8.4V Max.8.4V Switch Type: Clicky/Clickie Switch Location: Tail-cap Modes: 5 Mode Memory: Circuitry Features Mode Memory Mode Arrangement: Hi > Mid > Low > Fast Strobe > SOS Circuitry: Digital Regulated 1700mA Current Output Brightness: 500 lumens maximum brightness (manufacturer rated) Runtime: 60 minutes (manufacturer rated) Lens: Coated Glass Lens Reflector: Aluminum Textured/OP Reflector Carrying Clip: - Carrying Strap: Strap Included