BESTSUN Rechargeable 1800Lumens Headlamp Zoomable 3-Mode LED Flashlight+ 2 X 18650 Batteries+ Wall Charger+ Car Charger+ USB Cable; Suitable for Working, Camping, Hunting, Running, Fishing, Reading 1.Bright and durable LED, reaching 100,000 hours longer life-span, with max 1800 lumens output, powered by 1 or 2 18650 batteries (required and included) 2.Three working modes (High-Low-Strobe), waterproof, adjustable, handsfree and zoomable, applies for multiple usage in different places 3.Adjustable head strap, comfortable for wearing; made of aluminum alloy and rubber, using electronic protection device, safe and sable for use 4.Convenient for charging, WALL CHARGER, CAR CHARGER, and an USB CORD along with the headlamp. 5.Please take off the plastic wrap around the batteries, if not, it can not recharge.