Christmas lights string by TnS length 5m, with 180 incandescence lights, with a thickness of 5mm. They are green cable and emit natural white light, which is measured on the Kelvin scale with values from 4000K to 4800K. The tones of natural white resemble daylight and do not contain any other shades. They allow you to choose between various lighting programs, depending on your mood.. They operate with electricity.