Brand UltraFire Model U-L2 Quantity 1 Color Black Material Aluminum Alloy Emitter Brand Cree LED Type XM-L2 Emitter BIN T6 Color BIN Cool White Number of Emitters 7 Working Voltage 7.2~8.4 V Battery Configuration 4 x 18650 batteries (4400mAh with two parallel two series included) Circuitry 2800mA Brightness About 4000 lm Runtime 2 hours Number of Modes 3 Mode Arrangement Hi>Low>Fast Strobe Mode Memory No Switch Type Reverse clicky Switch Location Tailcap Lens Glass Reflector Aluminum Smooth Flashlight Mounting Handlebar and helmet Beam Range 250 meters Strap Included No Clip Included No Features Hard anodized Packing List 1 x Bike light with cable (70cm-cable) 1 x 4-18650 battery pack with cable (60cm-cable) 1 x AC power charger adapter (2-flat pin plug / 110cm-cable 100~240V 50/60Hz) 1 x Headband (50~80cm) 2 x Rubber O-rings