I know we've kicked this around a few times already, but I figure some new information is bound to show up sooner or later. [Linked Image]

Is there anything on the market that will 'upgrade' the temperature rating of conductors? I'm referring to situations where a Fixture, sorry, Luminaire is being replaced and the wiring in the ceiling box is an older 60C or 75C type.

In 'Your Old Wiring' by David Shapiro he mentions (box on pg 292) that in his other book he describes "a specialty product for upgrading their ratings" (temperature ratings of conductors)
Does anyone know what that would be?

Bill

Bill