I bought a house with 4 shop lights (T12) built into the ceiling of the garage. The tubes started to buzz and not light so I suspected the ballasts were going out. When I opened one of them to get the ballast info, I didn't find a traditional ballast. I found this plastic thing shown in the picture. Anyone know what this is and if it can be replaced? I'd just take them down and replace them with T8 but I'd have to rip up the floor in the attic to do it because of the way they were installed.
