Warm White. 37m Total Cable Length Status Karlstad 400 string lights are the perfect decoration for both indoor and outdoor spaces, making them ideal for Christmas and year-round use. These mains-powered lights emit a warm white glow, providing vibrant illumination. With a total cable length of 37m, the lights offer plenty of reach for various setups. The first LED is positioned 5 metres from the plug, allowing you the flexibility to keep the plug indoors or in a dry box for safety.