DescriptionRechargeable Headlamp:Model of LED: 3X XM-L L2Output bright can come to max 8000 lumens [lm]USB mobile phone chargeDigital Regulated for Constant BrightnessOne button switch 4-Modes : 1 LED light (middle) High/2 LED light (both sides) High/3 LED High/3 LED Flashing Internal wiring applies the high efficient booster circuit、 working voltage is wide and can utilize the batteries in the largest extentWaterproofing designAluminum alloy casingAdjustable base is provided for each head lamp、 with back and forth inclinationModel of Battery required: 2 x 18650 Batteries(Battery is not included)Dimension : 38mmWeight : 251gCharacteristicMulti-function Charger for Headlamp:1.USB line connect with your computer to charge2.Put the 18650 battery in headlamp case and connect the phone、it can to charge for phone3.Powered by Battery Bank4.Charging for battery bank5.Connect with Direct chargerUSB line:you can use All USB interface; e.g. Car;Computer;USB chargerPackage Included:100% Brand New1x 8000LM Multi-function XM-L L2 LED Rechargeable Headlamp1XUSB Charger for HeadlampNote:Batteries not included!!!