Led decorative
lights can be pretty cool in appearance.
Solar charged rope
lights can be pretty cool particularly multicolored changing LEDs. As for locating your trailer at night there's lots of other options to consider. The one I chose many years ago (8 or 9 years ago) was to put a 4" blue CCFL
light inside the trailer. This serves several purposes, the main reason for installation was for a low level
light in the middle of the night and not destroy sleep induced night vision. The secondary benefit is
windows end up with low level blue
light through the curtains which can be seen quit from quit a distance. Other low level
lights could do the same thing.
As for seeing critters outside, well, for the past 60 years of camping as teenager on the only critter I've seen in all camping locations is a deer or two and a few chipmunks. In my opinion we as people of the world have way too much fear of the dark. My opinion of backed up by the view of North America from space. Very little dark place left. One never knows there might be fire breathing dragons lurking behind every tree just waiting to gobble you up, they ate all of my ancestors.