Brand YINDING Model YD-2XU2 Quantity 1 Color Black Material Aluminum alloy Emitter Brand Cree LED Type XM-L Emitter BIN U2 Color BIN Cool White Number of Emitters 2 Working Voltage 7.2~8.4 V Battery Configuration 4 x 18650 (4400mAh with two parallel two series included) Circuitry 2500mA Brightness 1200 lm Runtime 2~3 hours Number of Modes 4 Mode Arrangement Hi>Mid>Low>Fast Strobe Mode Memory No Switch Type Reverse clicky Switch Location Tailcap Lens Plastic Reflector Plastic concave lens Strap Included No Clip Included No Beam Range 200m Packing List 1 x Bicycle Light with cable (20cm) 1 x Battery Pack with cable (75cm 4400mAh) 1 x 2-flat-pin plug power charger with cable (110cm 100-240V 50/60Hz) 1 x Headband (40~80cm) 2 x Rubber o-rings