Brand: UltraFire Model: WF-501B Casing Color: Black Emitter Brand/Type: XM-LT6 Emitter BIN: XM-LT6 Color Temperature: - Color BIN: White Total Emitters: 1 Battery Configurations: 1 x 18650 rechargeable battery (not included) Voltage Input: 2.8~4.2V 4.2V Max. Switch Type: Clicky/Clickie Switch Location: Tailcap (Tail-cap) Modes: 5 Mode Memory: Circuitry Features Mode Memory Mode Arrangement: Hi > Mid > Lo > Fast Strobe > SOS Circuitry: Digital Regulated 1400mA Current Output Brightness: 510 lumens maximum brightness (manufacturer rated) Runtime: 60 minutes(manufacturer rated) Lens: Coated Glass Lens Reflector: Aluminum Textured/OP Reflector Carrying Strap: Strap Included