Sienna window icicle lights are designed specifically for decorating in your windows. The short length of the set (3 feet) is ideal to span a window. The long (6 feet) lead wire makes it easier to reach a nearby outlet for electricity. This set includes 2 suction cups to hold the string at both ends of a window. Random twinkle "shimmering" icicle lights create a sparkling effect that is really pleasant to look at. For indoor use only. Clear lights on white wire. 3 inch spacing between the bulbs. 3.25 inch of spacing between the strands. If one bulb burns out, the rest will remain lit. Includes spare bulbs and fuses.