High bay light is a kind of high-efficiency indoor LED lighting, which can be widely used in industrial plants, production workshops, supermarkets, sports and entertainment venues and warehouses. High bay light are an important part of modern industrial lighting. Traditional high bay light often use 250W, 400W, 500W, 1000W metal halide lamps. Metal halide lamps emit light at 360 degrees. The disadvantage of large light loss has caused a huge waste of energy. Therefore, the development of new high-efficiency, energy-saving, long-life, high-color rendering index, and environmentally friendly LED high bay light is of great significance to the national industrial lighting energy conservation. High bay lighting is closely related to industrial production. LED high bay lights have gradually entered people's field of vision with the advantages of directional light emission, low power consumption, good driving characteristics, fast response speed, high shock resistance, long service life, and green environmental protection. It has become a new generation of energy-saving light sources with the advantages of replacing traditional light sources in the world. Therefore, LED high bay lights will become the best choice for lighting energy-saving renovation in the field of traditional large-scale industrial plant lighting, and it is also the general trend.