I had to replace the tail lights on the back of my aluminium tent late last year and found they were glued on. Actually they had silicone as the glue. Bugga of a job to get the off too. I ended up having to carefully break them off and then gave a good clean before fitting new ones.
I couldn't get the same ones but got close and just gave an extra clean around them.
I replaced the original LED lights with LED lights. All good now.
Keep Safe on the roads and out there.
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Live Life On Your Terms
DOUGChief One Feather (Losing feathers with age)
TUG.......2014 Holden LT Colorado Twin Cab Ute with Canopy
DEN....... 2014 "Chief" Arrow CV (with some changes)