Christmas lights string by Adeleq length 5m, with 100 led lights, with a thickness of 5mm. They emit light in various colors and are green cable. They have IP44 protection, which means they cannot be penetrated by solid objects larger than one millimeter and also cannot be penetrated by water with high intensity. They allow you to choose between various lighting programs, depending on your mood, and can be extended by connecting them to other bulbs.. They operate with electricity.