Probably appeared in the 1960s and 1970s, started in the mid-to-late 1990s, and after 2002, the number of crystal lamp companies increased from 2005 to 2006. In 2007, it was referred to as the "Crystal Lamp Year" by the lighting industry. . At present, there are more than 10,000 large and small enterprises in the assembly and production of crystal lamps in China, mainly in Zhongshan Guzhen and Dongguan. According to incomplete estimates, the average annual sales volume of crystal lamps in the past two years is more than 2 billion, which is no less than the modern simple lamps and low-voltage lamps popular in the market. Nowadays, crystal lighting is no longer a royal and aristocratic patent product, many families will consider choosing a magnificent crystal lamp to create a home atmosphere.