The stock lights that came with the trailer literally burn the ends of bulbs because they get so hot. I've also had three of the fixtures freeze the switch on, I assume they got so hot the switch locked. The first one I got, I replaced the whole light assembly with one that already had L.E.D. bulbs. Bad choice, don't like the bright white ones at all, however, after that I started purchasing "warm" white bulbs. Those I can tolerate very well, closer to normal bulbs in the light color and output.