So I have decided, after looking all over the Internet to either get blockbusters or radiants to replace my shitty big kahunas. Before I buy 11 of these I was hoping some people could weigh in. I have found the radiant for 140 shipped or the blockbuster for180 shipped. I am looking to cover a 3x3 square evenly with a 600 watt hps. Any help would be appreciated