Thanks for the input ledtime, I'm glad to hear that your LED experiments are working out for you.

I plan to use (if I do end up purchasing them) 2 of these 90 W lights for approximately a 5' x 1.5' area. The add says the lights are 80=Red and 10=Blue. The reds are 630 nm and the blues are 460 nm. I see that yours are 660 however. How do you think the 630's will fare?

My ultimate goal is to replace a 400W HPS I'm currently using. I understand that I may not get the same penetration with these lights, but I'm just very uncertain how much exactly will be compromised. I would really like a little more reassurance before making this $400 investment.

ledtime, the seller is also an ebayer who is shipping these products from china, and after reading posts by members of this site warning me about purchasing cheap china brand goods, I'm a little uneasy. But I think those warnings were directed against those low wattage lamps that have hundreds of led lights on them, and not the lights I'm concerned with here. If those 120 W lights are working for you, would you mind sharing with me, and others if they are interested, where to purchase them? The Procyon's are simply too expensive, so any suggestions on an alternative is very much welcomed. Thanks.