The Milwaukee M12 Cordless LED Work Light is powered by an M12 RED LITHIUM battery. The work light is twice as bright as conventional incandescent bulbs and runs up to twice as long on a single charge. Its 90° rotating head allows you to easily direct the light beam at the desired work area, while its magnetic back enables hands-free use. The cordless work light comes with a sealed aluminum head for impact and weather resistance, and a limited lifetime LED warranty. 49240146 49-24-0146