Solar Powered and Type-C Charging Method These outdoor solar string lights can work up to 10 hours after 4 to 8 hours of charging by sunlight. The usb charge can be complementary when there is no sufficient sunlight during the day. An updated version of the charging options that allows us to have more choices in our lives.Energy Effieiciency Outdoor Solar Lights During the daytime solar outdoor lights convert solar energy into electricity under the sun and store it and at night solar energy can be used to replace conventional electricity. These patio lights have light sensors that auto turn off when it's light and turn on when it's dark; no need to manually turn them on or off again, which is convenient and saves energy costs.Sturdy and Durable The G40 bulbs are made of premium plastic, which is shatterproof and durable, so you don't have to worry about broken glass, ensuring the safety of your family and friends. IP44 waterproof outside lights, can withstand temperatures, rainy, windy, or damp climates. Make every moment of your outdoor life a ritual.Commercial Grade Solar Lights for Outside UL listed, the hanging lights total length 38 feet. Each G40 led bulbs only 1w, efficient LED chips can save more than 90% of energy than incandescent bulbs and have a service life of up to 6,000 hours. Energy saving while ensuring our quality of life.Wide Decorative Use Our solar string lights need no outlet, perfect decoration for the bedroom, living room, and outside space like rooftops, deck, tent, porch, pergola, market, umbrella, balcony. Add a relaxed and romantic ambiance to your party, camping, wedding.