G50 globe string light heavy duty SPT-1 wire set that is 100 feet long and perfect for outdoor patios, decks, special event or Christmas lighting. Each set includes 125 round bulbs on a 18 gauge wire stringer with 100 sockets that are spaced 12" apart. These quality G50 light strings have long lasting 3000 hour bulbs and are on a 18 gauge wire. All our g50 light strings use patented Admiral Brand sockets. These durable and heavy duty light strings will provide you with years of maintenance free use. Each Set includes 25 extra replacement bulbs.