I am replacing old flush mount ceiling light fixtures and all the lights in the home centers have warnings to use only nmb 90 deg. c. All my wireing is nm. Where can I find fixtures that can use nm 60 deg. c. HELP
If the cable is before 1985 then it is probably NM which is 60ºC rated. If the cable is marked NM-B then it is 90ºC cable.
The only fixture that have the 60º rating will be ones that hang down. Anything that hugs the ceiling will be the higher rating.
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