Christmas Concepts® 1000 12M/40FT White LED Cluster Lights with 8 Function Controller - Indoor/Outdoor - Energy Efficient A++ - Christmas LightsBrighten up your Christmas display with these stunning cluster lights, perfect for both indoors and outdoors. The cluster light measures 12m 40ft in length with a 10m 33ft lead wire. With 8 function controller box: Combination, In Waves, Sequential, Slow Glow, Chase Flash, Slow Fade, Twinkle Flash & Steady On. The lights come in a durable storage box, keeping them in great condition to use year after year. BS indoor transformer. Super energy efficient