-Automatic Dusk-to-Dawn Sensor: With the automatic dusk-to-dawn sensor the lights seamlessly turn on at dusk and off at dawn. Simply switch the lights on and let the sensor do the work. -Waterproof and Weatherproof: Designed with a waterproof IP65 rating, these lights are suitable for both indoor and outdoor use and ensure long-lasting performance under harsh weather conditions. -Solar Powered: The lights are powered by the sun through solar technology. This allows the energy of daylight to be harnessed, even in low-light conditions. After fully charged, the lights last up to 10 hours. -Materials: The lights are made from PVC, LED bulbs, a 3V solar panel, and a lithium battery. -Dimensions: The string lights have three sizes, including: -7 feet (2 meters) in length -16 feet (5 meters) in length -32 feet (10 meters) in length