we are all here to tell of our experiences,what will work and what will not,i started with a 75w hps,then a 250 then a 400 an then a 600w hps.just tryin' to save the dude some money,cause when growin' fever take's hold'a you,there ain't shit you can do about it boy!!!!!! an i ain't no newbie 5 year's under my belt nearly,an i made enough mistake's to share with everyone!!!!!!!!!!!! if you don't make mistake's god dam it you ain't tryin' hard enough!!!!!!!!!!!!!!!!....spliffbuilder...lol.