About this item Super Brightness and Longevity Rechargeable headlamp with high quality LED chip excellent bulb can be used for 100000 hours light intensity up to 90000 lumens irradiation light up to 600 meters equipped with upgraded high-capacity 3 rechargeable ATTERY so that it can run for 10 hours at high brightness and more than 45 hours at low brightness. 90 Adjustable 4 Modes LED headlamp specially designed 90 adjustable angle each degree is very solid so you can see the full range of vision from front to back headlamp has high medium low strobe four lighting modes you can switch modes according to their different environments to achieve the full effect you want outdoor. USB Charging Comfortable Bright headlamp is specially designed for USB charging and circuit protection so you can charge at any USB port when you are outdoors. The adjustable elastic strap on the headlamp allows you to make satisfactory size adjustments to keep the headlamp firmly on your head and it is removable