Let your holiday lighting sparkle this season with faceted multi-color LED Christmas lights. The 50 M5 mini bulbs are spaced 4 inches apart on 17 feet of green wire making them ideal to decorate Christmas trees, interior trim, and fence lines. UL listed for indoor and outdoor use, you can safely combine up to 60 sets end-to-end. The LED bulbs are ten times more energy efficient than incandescent, cool to the touch, and when one goes out the rest stay lit. Create a dynamic lighting display with these safe and durable lights.