I have both Odysseas and Coralifes. The pluses for both are they are equally as good for lighting by itself. But the Coralife has 1 more plus, the fans are in the top, keeping the fixture cooler, and they are silent. As for the Odyssea, the fans are at one end, and are very poorly designed, and noisy. But you can try to quiet it down if you are good with DIY. Both types are good fixtures, but the Coralifes have the upper hand by being very silent. I can't hear my Coralife at all.