The application of LED lamps is not only used in shopping malls, squares, large conference rooms or homes. The most popular use now is the application of the jewelry showroom. At present, more than 95% of the jewelry stores in Shenzhen Shuibei Jewelry Market use LED lamps. Because of the high brightness of LED jewellery lamps, and the luminescence is close to natural light, the heat radiation has low color rendering, which significantly improves the brilliance of jewelry, and no high temperature and ultraviolet rays will cause damage to jewelry. There is also the safety of LED lamps. When the halogen lamp starts, it will generate a large instantaneous current, while the LED lamp will not, the heat radiation is low; it will not lose the luster and plastic catalysis during the whole effective service life, and keep the jewelry. The light color is constant.