Christmas lights string length 10m, with 100 led lights, with a thickness of 10mm. They are green cable and emit cool white light, which is measured on the Kelvin scale with values from 5000K to 6800K. The tones of cool white are more blue compared to natural light. They have IP65 protection, which means they have complete protection against dust, while water propelled with great force (e.g. pressure hose) cannot enter. They operate with electricity.