Air-Cooled with a flange to attach your ducting directly to the reflector. Designed specifically for the horticulture industry. With powder-coated steel to ensure a long life. This high-quality reflector can be used alone or in a line with many others. Connected by ducting to a sufficient fan this reflector will produce optimum results with cool and efficient operation. Completely sealed. Pre-installed lamp socket, 15' cord, and 2 hanging clips included. Measures 22"L x 20"W x 9"H. Works with all wattage MH and HPS lamps. Completely assembled ready to use.