Weight:113g Dimensions:2.17in*1.02in*2.17in(5.5cm*2.6cm*5.5cm) With the focus design in the headlight，the headlight can focus its light at different level.A focus and bright beam can nail down a distant object while a diffused light can illuminate a wide range.It all depends on you. Model:JX-01 Emitter Brand:Cree Emitter Bin:XP-E Q5 Color Bin:Cool White Quantity:1 Material:Aluminum Alloy Color:Black Total Emitter:1 Modes:3 Mode Arrangement:Hi>Lo>Fast Strobe Mode Memory:No Reflector:No Zooming Function:Yes Lens:Plastic convex Lens Battery Configuration:3*AAA Batteries Battery Included:No Beam Range:100m Luminous Flux:120 Circuitry:500MA Working Voltage:3.6-4.5V Runtime:2hrs Headband Length:40-80cm Switch Type:Clicky Switch Location:Head Packing List:1x Headlight<img src="http://112.74.112.28/down/products/320125/320125_000.jpg">