17m Solar Festoon Lights Outdoor LED String Light Christmas Party Garden DecorOur Solar String Lights are great not only for weddings, birthday parties or special events, but also for creating a warm, inviting ambience with its bright and mellow glow. Featuring a high efficiency solar panel with an even higher energy conversion rate, the string lights provide excellent lighting performance. With its energy drawn from the sun, the lights are practically running at zero costs. The light sensor has an auto on off function that