Illuminate outdoor flags without connecting to an electric power source. These lights have a built-in solar panel that gathers energy from the sun throughout the day to power them at night. Because you don’t need to wire these lights to a standard energy source, you can use them with flagpoles located in the most remote areas of your property. These lights mount on top of your flagpole between the pulley and the ball ornament to illuminate your flag from above. A sensor turns them on automatically at night—no need to remember to switch them on manually.