Let your house don its gay apparel when you decorate with the warmth of mini incandescent Christmas lights. The 50 clear bulbs are spaced only 4 inches apart on green wire so they are ideal for wrapping posts or tree trunks, and to create impact lighting on outdoor designs. UL listed for indoor/outdoor use, the set averages 3,000 hours of trouble-free lighting. Up to 3 sets of the 17-foot sets can safely be connected end-to-end. Let your house sparkle and shine with these durable, reliable and economical lights.