PryEU Colored Christmas String Lights Outdoor 100 LED 12M 39.4Ft 8 Modes Multicolor Waterproof Salt Water Powered (No Solar or Battery) for Gazebo Yard Porch Garden Tree Party Holiday Ambient Lighting Salt water or seawater powered outside string lights, green energy ZERO cost, works without any battery, power supply or solar panel, can be used indoors and outdoors, it won't be affected by bad weather like cloudy, raining and snowy days. This colored twinkle lights with 100 LEDs and 8 different blinking modes, 4 colors changing (red, green, blue, yellow), light string length 10M, lead wire 2M, popular used in outside Christmas tree house gazebo driveway yard garden deck apartment party holiday decorations. The colored christmas lights are easy to install and ennjoy, unclip the red house, pour in 300ml tap water and mix with 15g salt, or pour in 300ml seawater directly, then fasten the lip and push the button repeatedly for different flash modes. Child-friendly and environmentally-friendly, all thanks to this colored lights powered by salt and water (or seawater). aslo, here're more buying choices on energy saving festival decorations and link: http://a.co/fVBkyhS Fast shipping and deliver on time, Offer a instant and quick after-sales service.