Features Additional Product Features:. Clusters come in groups of 3 lights for a total of 12 clusters per string. UL listed for indoor and outdoor use. 120V. End-to-End connectors allow you to connect multiple sets together ( max 14 sets of this product total 210 watts). Spare bulbs and fuses included. Set of 36. Specifications Color: Red , Yellow & Green. Total length: 10'. Spacing from the plug to the first cluster: 24". Light cover dimensions: 3"L x 0.75"W.