I use them so much that now when looking at a catalog, I'll say, "solar lights" and my DH will say, "NO!"
But with night blindness, it sure helps me see how to get back to the trailer at night. Besides that, they look nice! :D
I got some of the kind for steps, and velcro(ed) the back of the light and the side of the steps. I just attach them when we arrive and remove them when we close up the steps to leave. Since it is only a Velcro strip on the steps, it doesn't impede the working of the step. They work really great!