Fastuno, I love my light fixture, I really do.
My corals grow steadily and retain their color. If I had 250w bulbs would my SPS grow quicker? Of course. Would my LPS be as happy? I don't think so.
These 150w HQI DE bulbs are sometimes compared to 250w mogul bulbs. All of my SPS are healthy and have really started to color up.
I think the coolest part of this future is the moonlights. It has 4 1 watt bulbs and the colors just glow at night.
hckycoz this answers your question,
As far as heat goes, I live in South Florida and run my tank without a chiller. Everyone that I know with a tank my size runs a chiller. My fixture runs so cool that I can actually tap the UV glass shields directly under the MH bulbs or hold my hand directly under them.
Coralife also has given me great service. One of my bulbs started turning yellow and the fixture is still under warranty, I called them, they had me send them a receipt, and a brand new bulb came to me in the mail. Very quick and easy to deal with.