Features:With one high quality CREE T6 LED.4 switch modes to get different lighting effect: high， low， strobe， and SOS.Long press the power button to enter slow strobe (SOS) mode.Head light can be adjusted around 90 degrees.Durable aluminum alloy crust， abrasion resistance.With a charging interface on the battery holder， much more convenient for charging.With adjustable and elastic head band for conveniently putting on or taking 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， camping， etc.Specifications:Emitter brand: CREEEmitter type: XM-L T6Lumen: 2000LMMaterial: Aluminum alloyPower supply: 1 or 2 * 18650 (not included)Charger input: AC 100-250VSwitch type: Single button (On， off and mode select)Headlamp size: 4.8 * 4.2cm / 1.9 * 1.7in (Length * Diameter)Headlamp weight: Approx. 181g / 6.4ozPackage size: 11.5 * 11 * 10.5cm / 4.5 * 4.3 * 4.1inPackage weight: Approx. 285g / 10.1ozPackage List:1 * Headlight1 * AC Charger (US plug)1 * Car Charger