Brand SingFire Model SF-552 Quantity 1 Color Black + purple Material Aluminum alloy Emitter Brand Cree LED Type XM-L Emitter BIN T6 Color BIN Cool White Number of Emitters 1 Working Voltage 4.2 V Battery Configuration 2 x 18650 batteries (included) Circuitry 2500mA Brightness 800 lm Runtime 3 hours Number of Modes 3 Mode Arrangement Hi > Low > Fast Strobe Mode Memory No Switch Type Reverse clicky Switch Location Bezel Lens Glass Reflector Aluminum Smooth Strap Included No Clip Included No Band Length 40cm Suitable Head Circumference 30~60cm Beam Range 200~300 meters Other Feature Hard anodized; Internal wiring applies the high efficient booster circuit working voltage is wide and can utilize the batteries in the largest extent; Waterproofing design; Aluminum alloy casing; Aluminum alloy reflector; The head of lamp can adjusted up and down 90 degrees good flexible Certification CE / RoHS Packing List 1 x Headlamp 2 x 18650 rechargeable batteries 1 x AC power charger adapter (Input: AC 100~240V / 50~60Hz; Output: DC 4.2V / 500mA; 2-flat-pin plug 95cm-cable) 1 x English user manual