Home Latest News Air Cooled Hoods: Glass vs. PAR, UV and More Air Cooled Hoods: Glass vs. PAR, UV and More Hands on Hydroponics Jul 03, 2015 comments off Tweet on Twitter Share on Facebook Pinterest ac hoods ac/de air cooled reflector air-cooled de 1000W hps de-hps infrared Infrared (Literature Subject) radiant heat sun system