Super Bright & Rechargeable: The headlight flashlight uses a first-class LED chip with a maximum brightness of 1100 lumens, which can easily illuminate the entire tent and road. It has a powerful 1500mAh built-in rechargeable battery that can be charged and turned on at the same time. No need to wait for a full charge or replace the battery. The battery indicator will help you grasp the battery usage. (It can last for 4-10 hours after being fully charged.