-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. -Solar Powered: The light is 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 ABS, copper wire, 300 LED bulbs, and a built-in lithium-ion battery (3.7v, 1800mAh). -Dimensions: The curtain lights are 7 feet (2 meters) in height and 10 feet (3 meters) in length. The cord from the curtain to the solar panel is 7 feet (2 meters) in length.