Originally Posted by JoeD
Peraps the old light did not need a box. The light itself was the junction box.
As long as the splice is in a fire-resistant enclosure I don't have a problem with it, but the NEC might.
Another thing is that some ceiling light fixtures require 90 °C cable instead of 60 °C, and the changeover was around 1985.
In this case, if you have 60 °C cable you should halve the max fixture wattage and relabel. E.g., the fixture from the store says 200w max, so you never put over 100w worth of bulbs in it, or use CFLs.
I brought up this idea with UL but they wouldn't say yea or nay on this derating plan. But they understood my point.