I replaced the two pendant lights above my kitchen island. One of the fixtures kept burning-out bulbs after about a week. Happened four times in a row, so obviously something amiss (but again, the bulbs lasted about a week each, using fixtures a few times a day). Thought maybe a bad bunch of bulbs. Happened with new bulbs. All the while, the adjacent new fixture was fine & dandy.
Okay, loose neutral. Nope. Tightened up everything at both fixtures. Same result; new bulbs last about a week.
Okay, bad fixture. Nope. Returned and exchanged, and no good; burned out the bulb in about a week.
Okay, voltage amiss. Nope; 123 volts, just like its new neighboring fixture.
Could voltage somehow fluctuate at just the one fixture?
Any help would be appreciated.
(And, no, this isn't the caulk issue I asked about earlier; aside from a burnt-plastic odor every time I use that fixture, it worked great. Kidding. . .)