I ordered two fixtures received one. My opinion is based on my experience on my 27" deep tank where the par level is greatly lower on the MaxSpect when compared to the pacific sun. Greenstreet1 in my first post I said I own the AI, MaxSpect, and Pacific Sun. I also gave my opinion on what I believe works best. As everyone else on Manhattan reefs we give our opinions based on our experience. My experience with the MaxSpect is not good. If you are happy with your fixture that's great and that is what you should post.