HydroFarm's Sola Cool Solar Powered Fan is a cool addition to your reflector. The easy-to-install Sola Cool kit works with Hydrofarm's XT6AC reflector, and consists of a solar panel array (56 mini solar panels) and a fan. The unit easily mounts inside the reflector using 4 magnetic nuts (included), which positions the fan in the center of one of the flanges. When your bulb turns on, the fan springs to life and propels a cooling breeze through your reflector. Please note that this kit was developed for 600 and 1000w lamps. If you are interested in running a 250 or 400w lamps, you should find other cooling options. Please read the SOLA6 Operation Sheet for more product information. Reflector and bulb sold separately.