Christmas lights string by Aca length 33m, with 300 lights led, thickness 10mm. They have black cable and emit warm white light, which is represented on the Kelvin scale with values from 2400K to 3800K. The tones of warm white are more yellow compared to natural light. 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.