Christmas lights string by JK Home Decoration length 14.4m, with 1440 lights led. They 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 operate on electricity for uninterrupted operation, ideal for large and stable decorations that require continuous lighting.