Brand: Wolf-Eyes Model: 21 Material: Aluminum alloy Emitter Brand: Cree LED Type: XR-E BIN: Q3 Color: Cool white Number of Emitters: 1 Voltage Input: 3.7~4.2V Battery Configuration: 1 x 18650 or 3 x AAA (not included) Circuitry: 1000mA Brightness: 210lm Runtime: 3~5 hours Number of Modes: 3 Mode Arrangement: Hi > Lo > Fast strobe Mode Memory: Yes Switch Type: Reverse clicky Switch Location: Tailcap Lens: Coated glass lens Reflector: No Strap Included: Yes Clip Included: No Beam Range: 100~200 meters Other Features: Zoom-to-throw; HA-III Other Accessory: 1 x AAA battery holder