This holiday let your interior designs and special crafts glow with the warmth of incandescent mini Christmas lights. The 15 clear bulbs are spaced 4 inches apart on green wire making them the ideal lights for your holiday crafts. UL listed for indoor and outdoor use, they average 3,000 hours of trouble free lighting. The 5-foot set comes with a stackable male only connection so multiple sets can be joined. Bring the ho-ho-ho to your holiday decor with these bright, dependable, and economical lights.