Christmas lights string by Vetur BV length 20m, with 400 lights led, thickness 2mm. They have green cable and emit natural white light, which is represented on the Kelvin scale with values from 4000K to 4800K. The tones of natural white resemble daylight and do not contain other shades. They have an IP44 protection rating, which indicates that solid objects over one millimeter cannot penetrate, nor can water with high intensity. They allow you to choose between various lighting change programs, depending on your mood. They operate on electricity for uninterrupted operation, ideal for large and stable decorations that require continuous lighting.