I like the large heat sink which does not necessitate running the fan all the time.
The light is perfect over my 50 gallon f.o.w.l.r aquarium. I will purchase another when I transform my aquarium to a full reef. Dimming the fixture is nice and allows you to get the right color, although I prefer white and blue dialed up to maximum output.
For mounting the light to my wooden canopy, I retrofitted steel brackets, that I purchased from Home Depot, and screwed them into the bottom which was convenient. The fixture is built rock solid, so I know it will hold up for many years to come. In conclusion I am very pleased with this purchase, and highly recommend this light.