This season deck your halls and boughs of holly with purple incandescent mini Christmas lights. These 100 warm light bulbs are spaced 6 inches apart on green wire making them the ideal lights to decorate trees, rooflines, and household decor. UL listed for indoor and outdoor use, the set averages 3,000 hours of trouble-free lighting. Up to 3 sets of the 50.5-foot strings can be connected end-to-end. Your house will be singing holiday tunes with these distinctive and colorful lights.