Well, this has certainly been interesting. Looks like those with big RVs just don't get that some of us still camp with next to nothing that uses power. No furnace. No slides. No water pump. No AC (although I do have it for when I'm hooked up to 30 amp.) I did state that I'm only using 3 light fixtures, and only one at a time - it's a LITTLE trailer! I'm still not sure about the refrigerator needing power as the 12 v and 110v switches have to be turned off in order to run it on propane. To me, that means it is not using power. As to the new LED bulbs I just put in the fixtures, they look like regular light bulbs, but are LEDs. None of them worked in the base up fixture, but all worked in the other two fixtures, and the original 12v bulbs I used work in that fixture, base up. So, I have to assume that the LEDs that I bought don't work base up.
I will take a couple of the new LED lanterns with me in case I run out of power and I'll be content with that. Thanks for all of the input!!