wrote in message
. net...

In the meantime, here's tonight's discovery:

F32T8 bulbs work fine in F40T12 fixtures. In fact, they even work in
fixtures that are finicky with F40T12 bulbs (presumably because the
ballasts are getting old).

Have others had the same experience? Am I shortening the bulb life, or
anything, by running an F32T8 bulb on a ballast designed for an F40T12?
I know that *theoretically* I may be putting more current through it...
in practice, does it make a difference?


t8s will not work in t12 fixtures. They need a electronic ballasts. I
replaces all my t12s with t8 and new fixtues. The t8s stay brighter longer
and use less power for the same amout of light as the t12.

Should I disbelieve my eyes, then? Read what I said.