UFO high bay LED light is a device consisting of die-cast aluminum alloy heat sink, PC optical lens, LED light source module, and driver. It replaces HID and other traditional light fixtures ad provides higher efficiency, longer lifespan from 50,000H up to 100,000H, better cost, higher reliability, less chance of breakdown, and 60V DC output voltage for safer use. It provides different light distribution angle by optical lenses without reflector.