This is the most common length used by professional installers and the green wire or lamp cord makes the connections between C9 stringer runs. It’s very important to remember that the lamp cord is not an extension cord and SHOULD NOT be used in lengths longer than 15′. When you’re powering up a custom commercial grade Christmas light display, you’ll need both the lamp cord and also a male and female slide plug which are sold separately.
250′ each. Shorted increments are sold in the self install kit.