Yup, IceCap makes some nice stuff. I have the T5 reflectors, very effective, but used them on my cloner lights. I need to get another set of 4 for the hybred setup, using cheap ones on that for the time being and they suck. (another tech term)

Yesterday I worked on the hybred frame, to move the inner bulbs outward. I broke one of the 2700K bulbs, found out they are currently "irreplaceable" for the time being.(only one source; out of stock) Have a spare 6500K, but could not find it. Had to go to HomeDump to get one, the only 4' T5 bulb they had was an Normal Output (28w) Alto (3500K) got two. Now I know the IceCap ballast will drive these to 85watts, but was worried that if I used 2-NOs and 2-HOs, would they play well together. No problem, the ballast just drives them all to the max.

On T8s, you may be able to use the smaller 430 model to do 4 lamps. Somewhere I have the total wattage each model can handle, I'll look thru some of my papers and notes. I think I also have the watt levels you can get from T8 and T12s somewhere.