Feit Outdoor Weatherproof String Light Set (Set of 3), Each Set 48 ft, 36 Bulbs Per Set, White Includes 3 sets of lights, 48 ft each. Total of 72 sockets and 108 incandescent bulbs (36 extra). Bulb spacing - 2 ft. Voltage - 130V. Ideal for patios, porches, restaurants and walkways.