Yes, I'm still using my ATI 8-Bulb Dimmable with 1 Reefbrite Blue Tech. I recently picked up a Blue XHO which I'm planning to swap in though. I added the Reefbrite Tech purely for my own viewing pleasure (add some pop), but I find it's not bright enough to overpower an 8 bulb T5. I'm hoping the XHO fixes the problem. The fans are not loud, but I do hear them. I would rank them as quieter than Radion fans.I'm curious are you still using the ATI 8 bulb fixture? I'm thinking of switching to a 6 bulb from my LEDs. Are the fans pretty quiet on it?