These solar string lights are a wonderful addition to any garden setting. They,re perfect for decorating trees, bushes, fences & balconies. These lights are powered entirely by solar energy. During the day, the solar panel charges the rechargeable battery inside the solar panel. At night, the stored energy is then used to turn on the lights automatically, providing a charming illumination. 100% eco-friendly: Powered entirely by solar energy Supplied with external solar panel with back-up battery Solar on-demand Cable length: 2m