No problems I can see
When I went to take out the protective acrylic "cover", it was warped in the slots so badly, that I had to break it out to get to the bulbs. Then one side quit working completely, and 2 weeks ago, the other one quit as well. So I decided I was going to retrofit a good HO ballast(Sylvania Advance) to get it up and running again. I was stunned when I opened it up. The "reflector" is so thin, it bends at the slightest pressure. It is literally one step above aluminum foil. I needed to trim it to accomodate the new ballast, and I was able to use household scissors! The individual "state of the art" ballasts were cheapo plastic encased and hot glued to the case. When I pried them away, the cover was breaking off. You could see the discoloration on them from, I'm guessing, when they gave up. The ends of the fixture are also a nightmare to get on as well. There are about 3 spots that need to line up, and I even had to spread the case a bit to get them back in.
- from the ECC thread
Out of curiosity I just tore down one of my old 48" non-HO DB fixtures and there are no issues I can see. The reflector is thin but it's definitely not "foil" like, and there's no reason it should be thick and heavy since all it does is reflect. The ballasts are indeed glued to the case, but the wiring is competent, I found the pressure-plate end-cap arrangement sort of elegant, and I didn't have any trouble putting it back together at all. I know nothing about ballasts but not sure what plastic casing has to do with anything relevant or why one wouldn't be able to cut them free of the housing without basically destroying anything. If and when the ballasts ever need replacing I don't see why it should be a problem - certainly a far cry from the "nightmare" referenced above and nothing to discourage me from buying more of them, at least the non-HO units anyway. I do wish the moonlights were on a separate circuit but it is what it is.