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Originally Posted by OvenMaster
130 volt bulbs are made, as far as I recall, for areas that have voltage that fluctuate, or will indeed last longer as they're not being fed the "full" 130 volts. I may be wrong, but an approximately 5% reduction in voltage will increase service life by around 15-20%. Tom
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Those 130-volt bulbs do last a long time, but when it's finally time to replace one it can be a heck of a job. I once had a desk lamp in which I had installed a 130-volt bulb. The bulb lasted some five years or so. When it finally burned out, the base was frozen in the socket; when I tried to unscrew the bulb, the bulb itself parted company with the base. I threw the glass part of the bulb in the trash, then spent another fifteen minutes (more or less) getting the base out of the socket. The 130-volt bulb lasted too long for its own good, IMHO (at least in a desk lamp) ; I used regular 120(!) volt bulbs from then on until the switch finally froze up. I'd stick to using the 130-volt bulbs in places where the socket isn't easily accessible, such as ceiling light fixtures and the like.