First of all, the biggest advantage is high light efficiency and significant energy saving cost: at present, the whole lighting efficiency of LED lighting has reached more than 150 lm/W. In indoor lighting, the bulb of about 8W LED bulb can replace the traditional 60-100W incandescent lamp, and the energy saving rate is more than 85%. In industrial lighting, 100W industrial and mining lamp can replace 250W metal halide lamp, the energy saving rate is more than 60%. In road lighting, 150W street lamp can replace 400W incandescent lamp. Sodium lamp, energy saving rate is more than 60%. Therefore, LED lights can significantly reduce the cost of power operation