Dusk to Dawn Solar Powered: save energy, save labor, no wires for solar charging. Four classic trapezoidal solar panels top-mounted. Push the power switch button to the ON position. The lamp will turn on automatically at dusk and turn off before sunrise. Two Mounting Ways: item can be directly placed on a 3-inch pole/post (not included) or fixed to any flat surface with a pier mount base (base included). Be sure the selected location has full sunlight.