Description:Some Halloween battery lights are powered by low voltage, won't overheat after prolonged use, and last longer. Great for indoor and outdoor Halloween party decorations, you can hang them on windows, walls and trees, and anywhere you want to decorate.Specification:Name: Halloween String LightsVoltage: 3VNumber of lamp beads: 10/20Packing List:1 set of Halloween string lightsNote:Due to manual measurement, there is a tolerance in the product size.Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.