Deckey LED String Light 200 LED Outdoor Solar Powered Waterproof 72FT Starry Fairy Lighting Christmas Decoration Flashing Lights for Xmas Tree Patio Gardens House Yard (Multi-color) Length:22m/72ft, Lamp beads quantity: 200 Waterproof, suitable for indoor and outdoor use. This solar led lights is charged by solar energy at daytime, and automaticlly light up at dark. NO wiring required,NO BATTERY.Recharged by solar panel under sunlight, totally Eco-friendly product. Super long working time, it can continuously work more than 8 hours at night if the panel absorbs enough sunshine during day.