I have a 4' Florescent fixture with 2 F40cw tubes. The tubes look like there half lit, sometimes they will fully light & other times there very low. I don't know if it is the fixture or tubes that are bad. I took 2 tubes out of another fixture that works properly & put them in the Fixture in question & they also lit very low. So next i put the questonable Tubes in the good fixture & they also lit very low in the good fixture. So i am back to the question which are bad or if the Tubes & fixture are both bad.
- posted
14 years ago