These red mini Christmas lights are what the well-dressed house is wearing this season. The 50 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 25-foot string averages 3,000 hours of trouble-free lighting. Up to 3 sets can safely be connected end-to-end. Bring the magic of the holidays to your home with these warm and festive lights.