I like Discount Hydroponics. I got a 400 watt system from them that has a switchable ballast (MH/HPS). It was $130, included ballast, bulb, light socket, reflector etc. I like it because you can switch from veg to bloom. Great for a 1 light system. I looked 4 years for a better deal, didn't find one. Good luck. When you call them 1-877-476-9487 tell them you are interested in economy price and they will greatly cut their web prices. At least it worked for me.