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23 foot 50 Dura-lit Strand with 5.5 inch Spacing on Green Wire: Blue. Christmas lights are a great addition to any tree, wreath, or garland and this Dura-Lit strand is no different. Each 23-foot strand features 50 lights that are evenly spaced 5.5 inches apart and attached to a green wire that disappears into the greenery that it decorates. With so many colors available, you will want to order more than just one of these Christmas essentials.