Solar Power Blue 100 LED String Fairy Lights Lamp 10m 32.8' Outdoor Party Xmas Garden Lawn Festival Carnival Decor No wiring needed, powered by solar energy. Flexible & Waterproof, suitable for indoor and outdoor use. High quality Brand new 100 LED solar powered fairy lights string. LED light can keep glowing for about 10 hours a night after fully charged during the day Easy operation - with "on/off" and "Mode" switch control on the back of panel.