Brand: UltraFire Model: WF-501B Color: Black Emitter Brand/Type: - Emitter BIN: R2-WC Color BIN: White Total Emitters: 1 Battery Configurations: 1 x 18650 battery (included) or 2 x 123A (not included) Voltage Input: 3.0~8.4V Switch Type: Clicky/Clickie Switch Location: Tail-cap Modes: 5 Mode Memory: Yes Mode Arrangement: High > Mid > Low > Fast strobe > SOS Circuitry: Digital Regulated 1000mA Current Output Brightness: 250 lumens (manufacturer rated) Runtime: 50 minutes (manufacturer rated) Lens: Glass lens Reflector: Aluminum Textured/OP Carrying Strap: Strap included Battery Charger: AC 100~240V / 2-flat-pin plug / 70cm-cable