Describe: [ Rechargeable Flashlights]- With rechargeable battery, it can be charged by usb cable(included), through powerbank,computer, car charger, wall charger. Power indicator above the rechargeable flashlight helps you to know the statu of the battery clearly. Specification: Use Cree XM- L2(U2) LED, life span is 50000 s Built- in dedicated 7.4V/ 7800mAh rechargeable lithium- ion battery Mm(length) x 52 mm( diameter of simple body) x 108 mm( diameter of simple head) Net weight 1234g( including battery) Both sides of the neck are controlled by the switch, which is and quick to operate Charging accessories support mains charging and car charging Support external discharge, with mobile power function Detachable shoulder strap, free hands Constant current circuit, constant brightness Intelligent memory circuit, the default brightness level before turning off when turned on Overcharge, overdischarge, overheating protection circuit, safer to use Low- voltage downshift, automatically the brightness level when the battery is low to extend the battery life Made of aviation aluminum The surface has been treated with three- level hard anodized anti- wear treatment Use double- sided anti- reflection coating tempered glass lens Packing list: 1* flashlights high lumens Your satisfaction is our only wish. If you have any questions about our products, you can contact us!