Drive a foundation stake into the ground and slip on the post that comes with each solar fixture. Add the light component on top. They do not require wires, timers, or switches--although they do need to be activated once after you install them. The hardest part of the installation is ensuring that the posts are plumb, evenly spaced, and driven into the ground at the same elevation. Even a little carelessness in position can be very noticeable when the lights come on.
