This waterproof, linear, machine tool light is a 31.5-watt LED tubular light with a brightness of 2400 lumens. The tube is made of glass, and it has and has an average life of 50,000 hours. With a voltage of 34 and 40 volts of alternating current, it is 31 inches long and has an outside diameter of 2 3/4 inches. This light mounts with a bracket and includes a terminal block. It meets cETL standards.