Yescom 39FT 100 LEDs Christmas Lights Solar Powered String Light Flash & Static Lighting Modes Waterproof Outdoor Blue Solar powered, no electric wiring required; LED Quantity: 100; String Length: 39 ft (11.9 m); Space between LEDs: 3 15/16" (10 cm) 2 optional lighting modes to choose: static light or flashing light; Automatic sensor activates after power is charged, lights turn on at night and turn off at dawn automatically IP44 waterproof protection, can be used in light rain Average run time is up to 10 hours after fully charged; Rechargeable battery, pre-installed behind the solar panel Comes with ground stake for easy fixation; Perfect for Christmas, party, wedding, holiday and more to create warm and romantic atmosphere; Great for outdoor and indoor use