I think they suck, or I need to try to move them up into the "light ring" zone. In other words, if I move them closer then 2 feet, I see little light rings on the plants, and that can't be good, but who knows.
I am looking at a much more expensive LED setup now, because I just know my next grow area is not gonna like the heat from HPS.
Honestly, I think the plant grew as well under this setup as it did under 21 cfls, so I have to say it was successful in cutting heat (A LOT) and cutting wattage in HALF. I guess you have to add, a LOT less noise, I didn't need near as much air movement, and that meant quieter fans.