Well, I've had the hamilton lights for a few weeks now. I have to say Travis was right! My SPS that were looking very brown and "blah" looking are really starting to make some color changes! I'm hoping it continues. I've noticed what used to be purple is starting to become purple again and what was green then went to browon is starting to become green again. My slimer also has TONS of polyps! The rest of the corals don't but for some reason that one does. I hope this continues, if so I'm recomending them to everyone! LOL