With the oversupply of LED lamp manufacturing industry in mainland China in 2011, the oversupply was serious in 2012 and a large number of enterprises were limited in production, stopped production, closed down, closed down, and even the boss ran away, many domestic LED explosion-proof lamp manufacturers have set their sights on the broader European and American special industrial explosion-proof lamp market. The huge demand in Europe and the United States is certainly very attractive to Chinese manufacturers of LED explosion-proof lamps, but it is not so easy to enter the European and American markets, except for the well-known LED patent threshold, ATEX explosion-proof certification is another technical trade barrier that manufacturers interested in European and American markets must face. It is understood that in the country, with the official authorization of the European Union, the qualified ATEX certification is issued by a Swiss QS certification authority (NB1254) At present, they have accepted ATEX explosion-proof certification applications from many well-known LED lighting companies in mainland China, and some products have passed strict tests in explosion-proof laboratories, the ATEX certification issued by Swiss QS certification company will soon be obtained, which will make the products enter the European and American explosion-proof lamp market first. The LED industry has developed rapidly in recent years. The production of high-brightness LED chips is expected to exceed 12 billion this year, with a growth rate of 100. According to reports, China has become the world's largest producer and exporter of lighting appliances. The sales volume of semiconductor lighting market exceeds 7 billion US dollars, with an average annual growth rate of more than 20. It is expected that in the next 5 ~ 10 years will form 50 billion ~ A potential market of US $100 billion.