Size 1 = US PlugSize 2 = EU PlugFunction:CREE T6 high quality LED， as bright as a spotlight.Head light can be adjusted around 90 degrees.Durable aluminum alloy material casing.With a charging interface on the battery holder， much more convenient for charging.With adjustable and elastic head band for conveniently put on or take off.The red indicator light on the battery holder plays a good warning role in night walking or cycling!Suitable for outdoor sport lovers to do some outdoor activities， such as hunting， cycling， climbing， and camping， etc.Suitable for:Camping， hiking， Backpacking， Hunting， Fishing， Search and Rescue， etc.Features:1.Model of LED: 1xCREE XM-L T6 LED Bulb2. Lumens: 2200Lumens3. Waterproofing design4.Aluminum alloy casing5.Aluminum alloy reflector6.3 switch Mode: Bright Light/Dim Light/Flashing Mode7.Model of Battery required: 2x18650 Battery。8.Working Voltage:3.7V9.Colour : Black with Blue Band10.Head Light Weight :197g11.Adjustable Focus， Zoomable LED HeadlampPackage Content:1x Headlamp Headlight;2x 18650 Rechargable 3.7v battery1x car charge;1x AC charge;1x USB Cable.