This SET includes 1 box of 100CT mini BLUE LIGHTS on GREEN WIRE. Each light strand is 22.4' long, including a 18" lead cord, 2.5" spacing and a 3.5" end cord. If one bulb goes out, the others will stay lit on this set. Replacement bulbs and fuses included. This light set also features replacement bulbs and fuses. Each string has an end to end connector for adding on light sets for any sized decorating project. UL listed, Suitable for either indoor or outdoor use.