Large-sized LED as light source, so as to ensure long lifespan, high energy-saving, and environmental-friendly. Under the same lighting effect, 7W LED ceiling light can replace 50W halogen lamps, energy-saving rate is 80%. LED ceiling light is without UV rays, infrared radiation, no mercury and harmful substances, no secondary pollution, less heat, making the environment more clean and comfortable. Power supply: constant current isolation driving power supply with functions of short-circuit, open-circuit and thermal protection. LED ceiling light share similar shape and size with conventional lamps, which makes the replacement more convenient. Used in places like: libraries, houses, supermarkets, exhibition halls, corridors, factories, offices and other indoor spaces.