Brand: UltraFire Product Color: Black Material: Aluminum alloy Emitter Brand: Cree LED Type: XM-L BIN: T6 Color: Cool white Number of Emitters: 1 Voltage Input: 3.6~4.2V Battery Configuration: 1 x 18650 (not included) Circuitry: 1800mA Brightness: 700lm (manufacturer rated actual 638lm) Runtime: 2 hours Number of Modes: 5 Mode Arrangement: Hi > Mid > Lo > Fast Strobe > SOS Mode Memory: No Switch Type: Reverse clicky Switch Location: Tailcap Lens: Plastic Reflector: No Strap Included: Yes Clip Included: Yes Beam Range: 100 meters Other Features: Zoom-to-throw