C7 1000 FT Spool Wire 12 inch spacing, SPT-1 E/12, Green Wire, Commercial, UL Listed, Indoor/Outdoor, Luna Holiday Lights. Commercial Grade Ultra-Durable Quality – This C7 Christmas light wire is constructed with durable materials and designed to withstand the demands of frequent use in professional settings. It is ideal for contractors, electricians, and serious DIYers who need reliable wire that won’t let them down. Versatility Indoors & Out – The SPT-1 C7 spool wire boasts superior waterproofing, making it suitable for indoor and outdoor use. Hang dazzling holiday lights outside or create custom lighting installations indoors! Flexibility in Installation – Generous length and durable construction allow for creative and customizable lighting designs to fit various spaces with our SPT-1 Christmas light wire. Safety Compliance (UL Listed) – UL-listed C7 sockets prioritize safety, giving peace of mind for festive lighting installations with our spool of Christmas lights. Energy Efficient – Our C7 light cord is compatible with LED bulbs for brighter, more colorful lighting while saving energy and lowering electricity costs. Special Feature: Water Resistant. Power Source: Corded Electric. Number of Light Sources: 1000. And we will work with you to resolve it to your satisfaction.