Features: Two vivid butterflies with RGB color changing LED lights. LED light automatically changes colors. Solar powered - automatically recharges under sunlight during daytime. Special Fiber Optic technology ensures smart light control function: the LED light only turns on in dark environment (at night). Plant the stake in the ground where it will get full sun to let the battery get charged, and the LED light will turn on automatically at night. The butterflies flutter and fly in your garden like real ones. Warnings:Avoid watering the controller chip,Do not crush, or tossing the light.