I've installed outdoor lamps (pedestal type) that had no box containing a splice in a teakwood frame, a typical porcelain keyless screwed to the wood, and this was a 120V light, 100W. The bulb was within 6" of the teakwood lid... No heat insulator of any kind... It was UL listed. They were very pretty when the lid was closed, however...
I'll only install UL listed devices, (that are listed for the purpose)... but I won't fall for the idea that UL equals OK...
Besides... the 1875W hair dryers with 15A plugs are UL listed... Need I say more?
