Brand: UltraFire Model: T6 Material: Aluminum alloy Emitter Brand: Cree LED Type: XM-L BIN: T6 Color: Cool white Number of Emitters: 1 Voltage Input: 8.4V Battery Configuration: 4 x 18650 (included) Circuitry: 2800mA Brightness: 870lm Runtime: 3~4 hours Number of Modes: 3 Mode Arrangement: Hi > Lo > Fast strobe Mode Memory: No Switch Type: Forward clicky Switch Location: Tailcap Lens: Coated glass lens Reflector: Plastic smooth / SMO Mounting: Handle bar helmet Beam Range: 100 meters Other Features: Water resistant Other Accessory: 1 x Battery pack (60cm-cable) 1 x Power adapter (AC 100~240V / 2-flat-pin plug / 100cm-cable) 2 x Rubber mount rings 1 x Head strap (20cm) 1 x Chinese / English user manual