Be confident in your purchase we're an Authorized ATI Dealer. How cool is that?!?!? ATI has been some of the most sought after bulbs in the reef aquarium hobby. With their bright crisp colors, ATI are our number one choice when it comes to T5 bulbs. With ATI bulbs you can use a single color on its own or you can mix and match to make the ultimate spectrum. Great stand-alone bulb just introduced by ATI to stimulate coral growth. This bulb?s color spectrum falls between the Aquablue Special and the Blue Plus. This white lamp has a higher blue part to enhance the fluorescent pigments in your corals while still having some peaks of red and green.