Today I just ordered 2 of these lights for my 60cm tank. I had never dropped into this thread before because I didn't own one. Reading through this, I'm super pumped! This is awesome! I happened to have all of the parts on hand from other projects, so I threw one together today. Near as I can tell, it should work when the lights get here. It's the same controller that I also use to run dosing pumps.
I don't like leaving stuff breadboarded, so I still need to solder it all up on that proto shield in the background.