[Brightness Adjustable:] With a unique rotary switch, the super bright COB work light provides 0-700 lumens of brightness, which can be adjusted from low to high brightness according to your different needs. [USB Rechargeable and Energy Saving:] With built-in rechargeable battery, the LED work light can be charged from any USB socket with the included USB charging cable. In addition, it can work continuously for about 13 hours at 50% power and about 3.5 hours at full power. The length of working time of the work light is related to the brightness of the light. [360 Rotation:] The bottom bracket of the convenient inspection light can be rotated 360, which is suitable for multi -angle lighting. [Magnet base and portable hook:] The lightweight work light is equipped with a powerful magnet at the bottom and a hook at the top, which can completely free your hands when you are busy doing things by hand. [Wide range of applications:] The waterproof USB work light can be used for indoor and outdoor activities. Such as: car repair, night reading, power outage, camping, travel, workshop, emergency, etc.