Brand UltraFire Model N/A 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 3 Working Voltage 8.4 V Battery Configuration 4 x 18650 (included) Circuitry 2400mA Brightness 1800 lm Runtime 2 hours Number of Modes 3 Mode Arrangement Hi > Lo > Fast strobe Mode Memory No Switch Type Forward clicky Switch Location Tailcap Lens Glass Reflector Aluminum Smooth / SMO Flashlight Mounting Handlebar and helmet Beam Range 150 meters Strap Included No Clip Included No Features Headband length: 20~40cm Packing List 1 x Bicycle light (110cm) 1 x 18650 battery pack (40cm-cable) 2 x Fixed rings 1 x Headband (20cm~40cm)