I would be wary of the pac sun light unless you can get local warranty. I had the metis line of led's. It was an awesome light but, when I had a strip of leds burn out I had to ship the thing to the states for warranty. They were good about it, even tried to send replacement parts. but still a hassle and got burned shipping and duty due to a paper work error.

Dang. Good to know about the warranty. Thanks for the info.

So after some discussion, it looks like I'll be restricted to a light fixture that has mounting legs to sit on the rimless tank.

Second less desirable option is to build a low profile canopy to house the lighting. In which I can ditch the rimless, and will have a way to hide plumbing and get my returns on the opposite end of tank. But won't be as visually pleasing to me.

I am in the process of setting up a 180g SPS dominant system and I went with the Hamilton Cebu Sun fixture. The one I picked up is 3x400w Radium MH + 4x80w T5's and it included all the bulbs plus the proper M135 magnetic ballasts. It comes in a 250w radium version with M80 ballasts as well. My system isn't up and running yet but there are a lot of good reviews about it out there.

I have to say that the customer service when dealing directly with Hamilton was amazing as well.

Bet you're gonna be happy with that one! :)

Ya so far, it's a pretty impressive light and I like the colour... though I have nothing in my tank yet.

I forgot to add that it came with tank mounts.

I had a bad experience with that line of products.

Awesome set up but if it's inside a closed quarter living space I would highly recommend a portable ac-unit and a chiller for the summer...

All T5, that's what the real pros use.

Orphek has the Atlantik v3 out now. I run the v1 and v2 units over my 180. It was a bit of a learning curve for me( I learned you can't pound corals with that intense light right out of the box). A nice light and can be custom ordered with fanless meanwell power supplies.