Dinner Parties, Birthday Parties, Gatherings, Party Commercial Quality String Light Fixture for Indoor / Outdoor Use With Updated Energy-efficient Bulbs Bulb Count: 100 Bulb Spacing: 12 in. Diameter of Bulb: 1.5 in. Bulb & Socket Type: G40 w/ a C7 / E12 base Lighted Length: 99 ft Total Length: 100 ft Length of segment from plug to 1st bulb: 1/2 ft (6 in.) for Indoor & Outdoor Use. NOT connectable. Globe G40 String Lights is perfect for any special occasion, adding a warm and charming festive accent to your gatherings. Brightown offer one-year quality guarantee for all products.