Yeah man you have an HQI ballast? Those ROCK from what I have read! It is a ballast specifically made for HQI bulbs, so yeah, sounds like you got a good light! You should be able to pick up pretty much any HQI bulb since your ballast is made for them. I know alot of people like the REEFLUX branded bulbs (made by Coralvue?). I bought mine from Aquarium Design, he has several brands to choose from.