[Delphinus]

Exactly how loud is the hum? All mine have that electrical hum, but since I keep my ballasts hidden in back rooms I never hear the ballasts.

It's a moot point though, I can't even hear myself think with the stupid hood fans going some days.... well that's not entirely true but the fans are disappointingly loud. I'm going to try some different ones in the new tank and keep these ones I have as a sort of backup. Effective, but not elegant, I guess.