Let your lighting display sparkle this holiday season with faceted blue LED Christmas light sets. The 35 C6 bulbs are spaced 4 inches apart on 12 feet of green wire making them perfect to wreaths, topiaries, and tree trunks. They are UL listed for indoor and outdoor use, and you can safely combine up to 80 sets end-to-end. Cool to the touch and energy efficient, when one bulb goes out the rest stay lit. Give your holiday lighting display drama with efficient LED Christmas lights.