【Super Brightness and Longevity】 Rechargeable headlamp with high-quality LED chip, excellent bulb can be used for 100,000 hours, light intensity up to 90,000 lumens, irradiation light up to 600 meters, equipped with 3 high-capacity 18650 rechargeable lithium batteries, so it can work for 10 hours at high brightness, and more than 4 hours. 5 hours at low power. brightness 【90° Adjustable & 4 Modes】Specially designed LED headlamp with 90° adjustable angle, each degree is very strong, so you can see the full range of vision from front to back, the headlamp has strong, medium, low, strobe, four lighting modes, you can switch modes according to their different environments to achieve the effect you want outdoors. USB Charging & Comfortable: Bright headlamp is specially designed for USB charging and circuit protection, so you can charge it at any USB port when you are outdoors. The adjustable elastic strap on the headlamp allows you to make satisfactory size adjustments to hold the headlamp