Originally Posted by coffeetwitch
I'm thinking bulb too. If it where ballast wouldn't all the bulbs on that ballast go out at the same time or flicker un unison? I've seen a bad bulb also affect the circuit. Causing the pair not to light
Well, this is the issue: it is not pairs that won't light up, it's singles.
Also, the fixture is VERY quiet and I wonder if the ballast shouldn't at least be humming
maybe it's overheating and they go off once In a while bc of that.
Leaving campus right now and will turn on one of the bad fixtures to see if they make a sound... Hope I'll make it home b4 UPS does