The explosion-proof protection level is IP65. Suitable for flammable and explosive environments such as coal mines, chemicals, petroleum, and power industries, with high safety factor, strong operational function, and stable performance. There are two types of explosion-proof products, dI and dIIBT4. dI is suitable for non mining working faces in coal mines; DIIBT4 is used in factories and is suitable for explosive gas mixtures in IIA and IIB level T1 to T4 environments.