Recently read that if you are going to be using an LED bulb in an enclosed space, buy bulbs designed for the high temperature, otherwise you WILL get premature failures in bulbs that will last for years in ordinary lamps.
https://duckduckgo.com/?t=lm&q=led+bulbs+enclosed+fixture+ra...
Alternatively, there are now much more efficient bulbs available. If they're passing A under the new EU Energy Label (from 2021) they'll barely be warm to the touch.