I have old 4ft fluorescent fixtures in the basement (about 10 years). They are the NEW232120REBN from Lithonia. The T12s are dying out so I bought some Philips InstantFit 32W-equivalent T8 LED tubes.
The thing is that the new LEDs don't work as pairs, just one per light fixture. I was hoping to for a lot of light from these, it's a major bummer to get light only from one side.
- There is no visible ballast, but I don't know anything about ballasts. I think it's an electronic ballast, but that's all I can figure from my research.
- I have some dimmers nearby, from Lutron, but these lights aren't on dimmers
- The holders (tombstones) seem to be pretty worn, but they click in and out ok.
- In one or two of the fixtures I put in the LED next to a fluorescent and it lit but super dim, like 10% of the light it should have.
Any tips? I'm totally lost as what to do next. Thanks in advance.