Search Results for ‘rapid-start t12’

Hi, We have a F40T12 electrical rapid start ballast and recently replaced our old burned out T12 48-inch tubes (2 of them) They worked perfectly for a full day, then yesterday they were dim, kind of grayish, like it looks when you only have 1 tube in a series circuit... Anyway, I removed and...

summary: Grounded shoplight fixture mounted in apartment kitchen, had 2xF40T12 bulbs and noisy T12 ballast, replaced with rapid-start electronic T12. Good light for ~6 weeks, then severe dimming. Replaced bulbs with known-good pair of same kind F40T12. Good light for 2 weeks, then dark. Switch...