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 is a switch ON/OFF under the light cover, make sure you turn the switch to ON position before charging. Measures: 55 x 14.5cm/21.65 x 5.7 inches per lights. Light Color: Warm White Suitable for outdoor use, the light can work normally under all kinds of weather with the waterproof rating of IP64 and weatherproof, no worries about rain, snow, frost, and sleet. NO WIRES. Push the stake into the soil, it just takes a few seconds. When you receive solar lights, please turn the switch to ON position under the light cap then place the light cover upside down at the table to check whether the lights will light up or not. 80 lumen, IS DESIGNED FOR DECORATION, MAYBE NOT BRIGHT ENOUGH, BUT THE LIGHT IS WARM AND GENTLE. Add a charming, decorative glow to your pathway, decorate your garden, porch or yard.