This apartment has strange problems. Incandescent bulbs burn out too fast,
usually when a switch is turned on. I monitored line voltage with a
plug-in meter that displays voltages in the range of 90 to 130. The needle
stays pointing in the green zone (110 to 125 volts). I don't live there,
but I left the meter there and the renter says it stays in the green zone.

Aside from that problem, the kitchen has a ceiling fan with three light
bulbs (standard base). The bulb in one position burns out, again when
power is switched on, much more often than the other two.

I've tried using bulbs rated at 130V. Seem to give better life, but there
is still a definite problem that I can't blame on simple high voltage.
There is no flicker that could indicate that the bulb isn't fully screwed
into the socket.

This is an "illegal" apartment, which means that there can be many code
violations.

Thanks for you suggestions/comments.


*Replace the socket on the light fixture or replace the light fixture. If
the rivets in the base of the socket loosen, there is some additional heat
being generated from the arcing. That heat will conduct to the filament and
cause the bulb to burn out prematurely. Vibration can also cause premature
bulb failure. Use fan bulbs in the ceiling fan if you aren't already.