Christmas lights string by Eurolamp length 13.15m, with 200 lights led, thickness 3mm. They have green cable and emit cool white light, which is represented on the Kelvin scale with values from 5000K to 6800K. Cool white light offers a modern and dynamic feel, ideal for impressive outdoor decorations.. They have an IP44 protection rating, which indicates that solid objects over one millimeter cannot penetrate, nor can water with high intensity. You can extend their length by connecting them with other lights. They operate on electricity for uninterrupted operation, ideal for large and stable decorations that require continuous lighting.