OVERVIEW: Powered by free solar energy and no electricity required. The solar panel supports long-term operations. They will come on automatically at night and turn off automatically at dawn. There’s an ON/OFF switch on the light cover, make sure you TURN ON switch before charging. Weather-resistant, suitable for outdoor use, no worries about rain, snow, frost, or sleet. Easy to install, NO WIRES! Push the stake into the soil, it just takes a few seconds.