Brand: UltraFire Model: WF-501B Emitter Brand/Type: MC-E Emitter BIN: M Color BIN: White Total Emitters: 1 Battery Configurations: 1 x 18650 rechargeable battery Voltage Input: 2.6~4.2V 4.2V Max. Switch Type: Clicky/Clickie Switch Location: Tail-cap Modes: 1 Mode Memory: - Mode Arrangement: - Circuitry: Digital Regulated 2000mA Current Output Brightness: 800 lumens maximum brightness (manufacturer rated) Runtime: 1.5 hours (manufacturer rated) Lens: Coated Glass Lens Reflector: Aluminum Textured/OP Reflector Carrying Clip: - Carrying Strap: Strap Included