my first thought is yes....but I think it has become more popular lately. I can't tell you if WallyWorld or Home Depot carry it though. It comes highly recommended to me but a word of warning.....when you use it....RAISE YOUR LIGHTS for a good 24 hours.....I didn't raise mine for long enough and fried some pretty good tops off....actually I think it was my LAST MK grow perhaps. Ahh what a difference 89,4958 mstakes make to your point of view.... (which is 89 yadda yadda that I won't make again. )