In ,
Michael Dobony typed:
I just replaced 4 light bulbs a little over 2 weeks ago,
not cheap dollar store ones, but Sylvanias. All four went
out already. I replaced 2 of them last night and 1 was
burned out only 2 hours later! I checked the voltage and
it is 117. The contacts are clean and bright. Any ideas
what might be going on?

Mike D.

Vibrations, movement of the sockets, theft, Sylvania makes a lot of trash
same as all the others. My bet's on vibrations from people's feet or
machinery running or a bad connection somehow. .