Appleton: Viamaster Hazardous Location lighting, Viamaster LED series with a clear polycarbonate lens and two safety cables Certifications: Class I, Div2, Class I, Zone 2. Class II, Div 2, Class III, Type 3R, 4, 4X Conduit Entries: two 3/4 IN NPT, Lumens: 7K lumen output, Voltage Rating: 120-277Vac, Avg Life: 60000 hours