The lights are working out pretty good. They don't get hot. The model I have is called versilite. They can either hang or sit on top of a canopy. I have them hanging. They have adjusters so you can keep them level.
The cost $400.
Check out my website. It's been up for a year. I think My 55gal will give you some ideas on how to set it up. I'm thinking of setting up a sump just to put the mechanicals
underneath. Let me know what you think.