I replaced our RV incandescents with low cost eBay warm white 36 and 48 led panels. I noticed right away that they got hot on shore power, 13.5 volts. Not at 12.5 volts from the batteries. No doubt they would not last long running over voltage. We never plug in while camping so it isn't a problem for us. If we did, I would have to find panels with built in voltage regulation or add a voltage regulator to each light. Our 36 panels seem to be exactly the same brightness and color as the old bulbs.
I have only two LED lights at home, both in places where they are on a lot. MIL can leave her bed reading light on continuously for about $5 a year. Same for the porch light. Others are all four foot fluorescents - I really like the large emission area compared to small incandescents. Compact fluorescents were just not bright enough.