Lights in a basement bedroom. These are 1'x4' troffers, and when originally gotten they were 3xF40T10. Before being installed in the basement ceiling, the original 2 ballasts in each fixture were junked.

Replacements were 2xF40 LPF RS (went with just 2 lamps because it was pretty tight/difficult to get 3 in these fixtures)

Like the other couple pic's I posted recently, these are pretty outdated looking. No real ambition to update them at this point though.

Have thought about replacing the ballasts because they can be pretty crappy...sometimes if its humid or cool, it can take a minute or 2 before the lights fire up. (have considered going with HPF, or electronic T12, or even upgrading to electronic/T8)

Lamps are warm-white.