Weight:767g Dimensions:2.17in*2.36in*2.36in(55mm*60mm*60mm) Brand:UltraFire Model:D77 Emitter Brand:Cree Emitter Bin:XML-T6 Color Bin:Cool White Quantity:1 Material:Aluminum alloy Color:Black Total Emitter:6 Reflector:Aluminum Smooth Reflector Modes:3 Mode Arrangement:Hi>Mid>Strobe Mode Memory:No Zooming Function:No Battery Included:Yes Battery Configuration:4x18650(4400MAH) Battery Using Time:1.5-2hrs Waterproof:No Beam Range:150m Lens:Glass Lens Minimum Luminous Flux:3000 Max Luminous Flux:3600 Circuitry:2.5A Working Voltage:8.4V(Max)/4.2V(Min) Switch Type:Full press Switch Location:Tail-cap Packing List:1x Bike Light 1x Headband 1x Power Charger 1x Battery Pack 1x Rubber Ring<img src="http://112.74.112.28/down/products/320101/320101_000.jpg">