I recently went through the same thing. I wanted to dump my MH and VHOs and save some on my electric bill. As much as I liked the idea of saving some money on a DIY project, reading up on the subject made my head spin. So not knowing any better I bought one of the units on ebay for $200 or something like that. Made my tank look like it was full of windex. I shipped it back and went to my LFS to see what they were using and hopefully get some advice. (Krystal Clear Aquatics in Auburn MA). They have several different LED systems that they have set up over the past few years. The one they settled on is EcoRay. Looked great in the store. Very natural looking, and they said the coral do very well under it. So I bought two of the 112 units for my 210 gallon tank and bagged my MH and VHOs. That was about a month ago. I could use another 60 (about half the size of the 112s) to fill out the tank, but they look great. They don't have some features that I might have liked like dimming, but I didn't have that on my MH either. They have two plugs per unit, one for blue, one for white, that can be put on individual timers. Very happy with them so far.