These beautiful Color Changing Solar Butterfly Lights are perfect for any time of the year. They charge in the sun and automatically turn on at night with the built in sensor. These solar powered lights are very simple to use and softly change color between red, green and blue creating a stunning light show making these lights a perfect edition to any garden party or solar lights display. When the panel is switched to the "ON", position the lights will automatically turn on at dusk for up to 6 hours.