INST [Upgrated Version] Solar Decorative LED String Light, Ambiance Lighting, 72ft 22m 200 LED Solar Fairy String Lights for Outdoor, Gardens, Homes, Christmas Party (Warm White) This solar LED works by converting solar energy into electricity during the day, and it lights up automatically at dark. 200 LED lights, 8 working modes, 72ft, 22m Sealed process, with good waterproof performance. INST brand product, specializing in LED string lights, with good quality and prompt customer service support. Upgrated version, steady quality. 1800mah power capacity, making it lighting longer than the old 1200mah version.