"krw" wrote

Be careful with upside down CFLs and in particular CFLs mounted in
fixtures upside down. Most don't like this orientation and being
enclosed in fixtures makes the problem worse. The circuits in the
"base" overheat and this *drastically* reduces longevity.

I put some CFL floods in my recessed ceiling fixtures. When I removed one for
cleaning several months later, I noticed the tube was hanging loose from the
base. I found the same problem with another of the same brand (don't remember
what it was).

I replaced them with a different brand, and those are doing fine.