Feature:1. Main Features: The solar mason jar lights Lids are flame free, 2 meters long, and fit normal jars, jars are not included.2. Light Sensor: Press the button to turn it on and expose them to direct sunlight, the built in light sensor ensures it turns on at dusk and automatically turns off at dawn.3. Waterproof Design: The waterproof design makes the solar glass jar light work well indoors or outdoors without worrying about short circuit due to weather.4. Applications: These solar mason jar lights can be hung on trees or placed on sunny windowsills, fence tops, outdoor plant stands, lawns, tabletop balconies, backyards, patios, porches, and more.5. Premium Material: Solar fairy string lids are made of ABS and copper with 20 LEDs, warm light source. Perfect for outdoor events such as weddings, birthday parties, BBQs, picnics and more.Specification:Item Type: Mason Jar Lights LidMaterial: ABS, CopperLength: Approx. 2m/6.6ftNumber of Lamp Beads: 20LEDsLight Source: Warm LightBattery: 1 x AAA Battery 600mAh (Included)Battery Voltage: 1.2VGross Weight: Approx. 45g/1.6oz.Package List:1 x Mason Jar Lights LidNote:Please allow some errors due to manual measurement.