i bought a 250 hps off of them and cant sya enough good things abou it. Produces good bud and runs pretty cool compared to the 400 mh i have been using. i paid $125 from htg and think thats a great deal. I bought some 100 watt hps on clearance at home depot for less than $20 and they seem to be working prettygood. I only been using these for a few months and never for a full crop cycle.