The owner of one of my LFS recomended Triton bulbs over Coralife bulbs ,his opinion is that they are brighter.Now as he doesent sell any kind of dry goods (only sells corals and fish)im inclined to go with his opinion. I have been searching all of the manuf. sites that I could find but only found these bulbs at That Pet Place.It seems that the catolog I saw at store had a lower price than what I am finding at That Pet Place. Does anyone know of the manf.web address or of another on line store that sells Tritons? Also has anyone else used these and what do you think of them ? They will be used on a 55 gal. tank that will house mostly fish but will probably also keep some kind of lower light corals ,such as mushrooms. TIA Mike