Understood on the switch normally on the light, that is what I expected. But, there is no switch. I am going to order a replacement with switchUsually there's a rocker switch on the actual light if it's on the wall of the pup and not on the roof.
Maybe take a picture and post it. Helps to see what you're working with.
Yes, they bought the camper and never used it, they have no idea..Did you contact the previous owner by chance?