COB Workshop Light: Highsam's portable mechanical LED light with extended light bar provides up to 10-600 lumens of brightness, which can illuminate large areas. The brightness switch allows you to adjust the brightness to your desired intensity. COB technology, which has a larger light-emitting area and produces less light than traditional LEDs, generates less heat due to the larger cooling surface. 【Rechargeable and Durable】The rechargeable LED light is powered by a built-in 1500mAh battery and comes with a micro USB charging cable. Powerful work light, lighting at low brightness for up to 20 hours, high brightness for about 3.5 hours. 4 blue LED indicators on the back help you track the remaining battery charge. 【Hook and Magnetic Base】The hook and 360-degree rotating magnetic base provide illumination from multiple angles. Powerful magnets can hold the LED workshop lights to ferrous metal surfaces such as cars, trucks, and machinery during work or repair. 【Durable and Reliable】The