The Dialight Safesite is a versatile Hazardous Area Explosion Proof light. Class 1 Division 1 rated LED makes it a great light for many applications. This version is a high lumen output that is a great energy efficient alternative to HPS or Metal Halide lights used as High Bays. Suitable for: Oil and Gas Operations, Waste Water Treatment facilities, chemical plants, ect. The listed model is : 144 watts and 16,000 lumens. Their are many other versions to choose from by looking at the attached specification sheet. The Dialight Safesite Comes standard with pendant mounting with optional lenses for variations of light spread from 60 degrees to 140 degrees. Operates in temperature range of – 40 c to 40 c. Power supply 120/277 volt. 5 year warranty LED.