Not knowing if I was throwing away a hard earned 8 dollars and change, I ordered 6 LED 12 volt daytime running lights from Ebay for the camper. They looked pretty bright in the ad. They arrived a couple days ago. Today after painting, I found a converter to give me a few amps of 12 volt DC. Using some alligator clip testing connectors I hooked two of them up. They seem pretty bright. I plan to use them as overhead lights in the cabin. Given how bright they are I might put each pair on a separate circuit with its own switch.
They are kind of flimsy but I’m sure I can adhere them to a backing to sturdy them up.