Brand SingFire Model SF-536 Quantity 1 Color Black + Silver 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 rechargeable batteries (included) Circuitry 2500mA Brightness 800 lm Runtime 4 hours Number of Modes 3 Mode Arrangement Hi > Lo > Fast strobe Mode Memory No Switch Type Forward clicky Switch Location Tailcap Lens Plastic Reflector No Strap Included No Clip Included No Band Length 20cm Suitable Head Circumference 30~60cm Beam Range Over 300 meters Other Feature Zoom-to-throw; Water resistant / Hard anodized; Short pressing switch enter into mode cycle; Random mode long pressing enter into fast strobe mode. Certification CE / RoHs Packing List 1 x Headlamp (35cm battery case cable) 2 x 18650 rechargeable batteries 1 x 2-Flat-Pin plug power charger (100~240V / 65cm) 1 x English user manual