These red mini Christmas lights are what the well-dressed house is wearing this season. The 100 twist-proof, anti-theft incandescent bulbs are spaced 6 inches apart on green wire making them perfect to decorate trees, rooflines, and offices. UL listed for indoor and outdoor use, the 52.5-foot string averages 2,500 hours of trouble-free lighting. Up to 4 sets can safely be connected end-to-end and the 32-inch lead makes reaching an outlet easy. Bring the magic of the holidays to your home with these warm and festive lights.