Kind of like I think we'll all be driving electric cars before too long, I think we'll all be using exclusively LED reef tank lighting "before too long". OK, sounds a little extreme but that's what my instincts are telling me. Several BAR members have been giving the application a good work out and new products just keep on coming. I'm getting familiar with new terms, new concepts and I'm liking what I see. If it makes sense, I may be trying to recoup a little of the $2K investment I made in a Photon Plus fixture 18 months ago before it's totally obsolete. At the time it was one of the best and most compact units of it's type. 6 T5's on two separate circuits and two SE 250w Mh's on separate circuits. It works great but is a huge energy hog and generates enough heat to cook the Turkey. Has anyone had experience with this fixture? http://www.aquariumspecialty.com/catalog/product_info.php?products_id=6957 Also, any of our members who have been using LED only fixtures, please offer any updates with how you like your equipment and how your livestock is doing. I sure like the 48" strip of Reefbrite blues I added to supplement my existing light.