im just sayin u can purchase all you need with out using ebay. They do watch what people buy, and these "hydro" systems are very popular for growing illgal things. Not that any of us do. But they do sell lists of people who buy what to people who may be intreasted. As digital documentions arent really evidence its still points "them" in a direction. DO what u want, it makes no diff to me. But i would most def. just buy a hps, If you want +yeaild + potenc IMO