Photoron is only useful for the smallest of hobby growers.. The actual Phototron grow box is the least attractive aspect of this investment imop.. People are using using bubble systems or other hydro techniques * what honestly worries me is that The Home Depot is now carrying Hydroponics equipment. From propagation to 8 bucket bubble hydro systems for $289. Plus a 600w hps is about $30 .. Home Depot & Lowes are the real competition for $PHOT and all small grow stores HENCE customer satisfaction will determine the fate of $PHOT.. 9 out of 10 Big Box wins .. sucks but ain't it the truth http://www.homedepot.com/p/Viagrow-Hydroponic-Black-Bucket-Deep-Water-System-8-Pack-V8DWC/203124375?MERCH=REC-_-product-3-_-203124373-_-203124375-_-N#.Uh4RN7zYkYU