i'm using coralife pc bulbs and a triad ballast, i forget what the old one was i think water got to it. anyhow i still can't get this ballast to fire up and its new.. i have it wired just like my other ballast,but both ballast are alittle diferent setup wise so i still must not be doing something right. i suck at wiring stuff. now fish-plants and cars i can build,grow and take care of. haha