Novelty Lights blue C9 string light set with 125 bulbs is perfect for outdoor patios, decks, special event or Christmas lighting. Each set includes 125 long life C9 bulbs (25 extra included) on a green wire stringer with 100 sockets that are spaced 12" apart. These durable vintage filament Blue ceramic c9 light strings have long lasting 3,000 hour bulbs and are on a 20 gauge SPT-1 green wire. All our c9 light strings use high quality materials that will stand up to all weathering. These C9 string light sets are great for putting on a roofline, decorating and indoor/outdoor tree, restaurant lighting, wedding events, and much more.