SM??? what does sm stand for? I do also have 2 high output actinics in my hood. They are very blue colour. Would the Halide actually be that blue, if yes then maybe I would not want them. Right now my 10,000s seem very bright almost too bright to me. My supplier offers 10,000s or 20,000s and nothing in between. Currently I have 3 halide bulbs in my hood but have been running only 2 of them because the tank is very bright. And have 2 actinics. maybe I should run 3 20,000s and not run the actinics. Would really like to see a pic using the 20s. Gbolton do you have a pic???