installing old ceiling light

Old 01-23-03, 01:23 PM
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Question installing old ceiling light

I am installing an old ceiling light my wife bought and the wires in it are both white. One has a little ridge on it and the other is smooth with some writing. Which one should be the hot wire? And does it really matter? I hooked it up with the writing to the negative (white) and the ridge to the hot (black) and the light works but I thought I'd see what you have to say. Thanks
Old 01-23-03, 01:33 PM
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If you can determine which of the two wire goes to the center contact on the lamp base that technically should be the hot (black) wire. You could use a meter to figure out which wire feeds the center and which wire feeds the threaded shell. Just make sure (if you don't test it to find out which wire feeds the center contact) that the lamp socket's threaded shell doesn't make contact with part of the fixture's housing or it will be hot...being fed with the hot (black) wire.

Old 01-23-03, 04:37 PM
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The smooth wire is hot, and the wire with the ridge is neutral. Yes it matters, and you have it backwards. Switch it.
Old 01-24-03, 09:41 AM
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Thanks for the info. I'll get the wires switched.

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