LEDNICEKER Solar Powered Fairy String Lights, 15.75ft 20 LEDs Decorative Lighting for Christmas, Wedding, Party, Holiday, Camping Decoration(Multi-colored Chuzzle Ball) The string lights are solar powered with bulit-in rechargeable battery, no extension cord required 20 LED lights on each string with a single solar panel, automatically on/off controlled by light sensor inside the solar panel There are 2 modes to choose, the lights can steady on/blinking at once The lights are weather proof for raindrops and snow, suitable for both indoor and outdoor use The string lights will be your ideal choose for decorating Christmas, party, holiday, trees, patio, porch, lawn, garden, etc.