If you are talking about the ebay mach-alikes, then they are good headlights.
I would recommend adding a bead of sylicone where the lens meets the housing,
this will keep them from getting condensation inside of them.
As for the clearcoat peeling off, if you haven't bought them already, put some
clear 20 mil lamin-x on the lenses and you'll never have the peeling clearcoat problem.
If you've got some that are already peeling, wetsand the lenses until they are nice
and clear again, then apply a set of lamin-x. You can get the lamin-x from one of
our vendors on this site (unique coatings). Good luck buddy.