Explosion-proof lighting fixtures generally adopt effective measures to allow internal structures to explode and block spark propagation, which is a commonly used explosion-proof type. This explosion-proof type of lighting fixture casing is generally manufactured using metal composite materials, with strong heat removal, high casing strength, and good durability, which is highly favored by users. In addition, many explosion-proof electrical components, such as sockets, interlocking power switches, etc., also use explosion-proof construction.