Bought them for my vinyl fence. I used a small tiny piece of double sided tape instead of drilling holes on my new vinyl. Looks great!
Easy to install, perfect for stairs since they are thin and don't stick out. They're about the same thickness as the bull nose on my stairs sticks out. They come on at dusk and dim out over the course of the night. They are very bright for at least 6 hours. Haven't stayed up all night to see when they dim, but they're dim in the morning before sunrise. They still have enough light to them to keep the stairs from being a hazard when they are dim.