The IR4 Series Class 1 Div 1 Explosion Proof light is a heavy duty luminaire with multiple light options. The IR4 is a great fixture for replacing older metal halides or HPS fixtures. The IR4 is a versatile fixture that is constructed of cast aluminum with reinforced glass tubes. Have built in swivel mounted adjustable brackets. These explosion proof lights are commonly used in: Blasting Rooms, Paint Booths, Petrochemical Plants, Oil/Gas Industry, ect. The IR4 Comes in two and 4 lamp versions of: T5HO, T8 and T8 LED. We also have a new version that utilizes LED Array Strip Technology. 120/277 volt. Multi Listed Class 1 Div 1 for liquids and gases and Class 2 Div 1 for dust and fibers. Accessories: wire guard and safety cable.