This season, deck your halls and boughs of holly with the warmth of incandescent mini Christmas lights. The 100 clear bulbs are spaced 3 inches apart on green wire making them the ideal lights to wrap wreaths, mantelpieces, and topiaries. UL listed for indoor and outdoor use, the string averages 3,000 hours of trouble free lighting. Up to 3 sets of the 23-foot strings can safely be connected end-to-end. Make your season bright with these durable, reliable, and festive lights.