Make your treetops glisten when you decorate with frosted incandescent mini Christmas light sets. The 50 twist proof and anti-theft bulbs are spaced 6 inches apart on green wire making them ideal for decorating trees, house trim and outdoor designs. UL listed for indoor/outdoor use, the strings average 3,000 hours for years of trouble-free lighting. Up to 3 sets of the 25-foot strings can safely be connected end-to-end. Let your house don its gay apparel with these durable, reliable, and economical lights.