Grape Vine String Lights, Indoor/Outdoor, 6 Feet, 5 Clusters, Green Light Count: 100 (5 grape clusters); Bulb Type: Incandescent mini bulbs Lighted Length: 6 ft.; Bulb Spacing: 12 inches between grape clusters Lead Length: 4 ft.; Tail Length: 9 in. End-to-End connectable: Yes, up to 5 strands; Wire Color: Green Grade: UL Listed for Indoor and Outdoor use