<a href=showthread.php?s=&postid=13146911#post13146911 target=_blank>Originally posted</a> by ekovalsky
I have three Lumenmax 3 with 250w Phoenix 14k bulbs plus 4 x 80w T5s on an Icecap 660 in a DIY aluminum angle frame, suspended by a bicycle lift. Not the most elegant combination, but it works and was inexpensive. Total watts = 1150w included the overdriven T5s. I may rebuild with 400w pendants, probably Lumenbright, which I would have positioned higher. Even with 20k bulbs I would be able to move the fixture higher and have more even light intensity down to the sand bed. I feel the gradient with the 250w is a bit harsh, requiring careful placement of corals.
I definitely would not worry about T5s penetrating to the bottom. Acting as a line source, they actually seem to penetrate water better than point source lights like MH. But of course they don't shimmer.
If you go with MH pendants, you may want to consider VHOs instead of T5s. They have an internal reflector which, while not as effective, makes them take up less space. And the UVL Actinic VHO bulb is incomparable -- I'm actually thinking about switching my fluorescent supplementation from T5 to VHO.