This Indatech HRT Series LED class 1 division 2 Hazardous Location LED light is the next generation in LED Hazardous location Lighting. They come in 2ft. and 4ft. lengths. They are Class 1 Division 2 rated and used in any area that need alot of light but still offers significant energy savings over the traditional Metal Halide and Fluorescents. Used in refinery operations, waste water plants, chemical storage areas, ect. They are a well made aluminum body with LED modules. The 2ft 2 module fixture produces 5,300 lumens. The 4ft. 3 module fixture produces 8,000 lumens. The quality of light from these fixtures is daylight 5000k color. Come standard with built in brackets. Swivel brackets available.