Chemical plants are different from ordinary factories. Some chemical properties of some chemicals are unstable. Under certain circumstances, chemical changes are very prone to occur, resulting in human poisoning and explosion. Because lighting fixtures are inevitably produced by real estate or form a hot surface at work. Once they meet the explosive gas mixture at the production or rescue site, they will lead to the occurrence of explosion accidents and directly endanger the lives of citizens and national property safety. The explosion -proof lamp is to prevent arcs, sparks, and high temperatures that can be generated inside the lamp from flammable gases and dust in the surrounding environment, thereby achieving lamps that require explosion -proof requirements.