SOOOOO i was looking around lowes today and saw some 70w 65w etc... MH and HPS outdoor lights. i am seriously considering picking one of these up for a grow? what do yall think? i was going to ask before i did it because i am still concerned as to whether its going to work or not? EDIT: the reason i am asking is right now i have 2 100w CFLs making 7000 lumans each. and it seems like 70w HPS bulbs make about 3000 lumans with that in mind would i be downsizing?