Deck your halls and boughs of holly with purple incandescent mini lights this season. These 50 warm Christmas light bulbs are spaced 6 inches apart on green wire making them the ideal lights to add glamour to your tree or home decor. UL listed for indoor and outdoor use, the string averages 3,000 hours. Up to 3 sets of the 25-foot strings can be connected end-to-end. Your house will be singing holiday tunes with these distinctive and colorful lights.