ive notice a majority of people doing whatever size personal grow shows us flores blub whether it b compaact or whateverand assorted others not MH or HPS really. in the long run arnt these hid lamps better for the end product and price. electricity replacement ect. are the real expensive where ever these people live? if i were them id wait save a little more and get proper lights whether it b 150watt mh 250hps 1000 wattt whatever. if ur really that straped fer cash rip one of the side of a building..l.ol.. just a personal opinon