Brand: RUSTU Model: R60S Material: T6063 T6 Aluminum alloy Emitter Brand: Cree LED Type: XM-L BIN: T6 Color: Cool white Number of Emitters: 6 Voltage Input: 10.8~12.6V Battery Configuration: 2 or 3 x 18650 / 26650 (not included) Circuitry: 1300mA Brightness: 4800lm (manufacturer rated actual 2920lm) Runtime: 4 hours at mid mode Number of Modes: 5 Mode Arrangement: Hi > Mid > Lo > Fast strobe > SOS Mode Memory: Yes Switch Type: Reverse clicky Switch Location: Tailcap Lens: Tempered optical glass lens Reflector: Aluminum smooth / SMO Strap Included: No Clip Included: No Beam Range: 350 meters Other Features: HA-III surface; IPX8 waterproof Certification: CE