that guy from the link you sent , he dogs all lights exept what he sells. I dont like that. he must have never used good led's and only the cheap low power ones. I would have got some from him exept that he bad mouths so much. Norman lamps is a cheap way to go and I just started vending for them were I work. 105w cfl = 500w equevelent (SP) for about $20-$26 each rather than ebays 40-60 price range. check them out both color ranges. 2700k and 6500k