This heavy duty C-9 wire is a convenient way to decorate for the holidays. The 18 gauge wire is extra durable and has an exceptionally long lifespan. It is compatible with most light strings and all standard C-9 bulbs. There is a 12 inch spacing between light sockets on this green wire strand and approximately 25 sockets in total. It has a 6 inch lead cord and a 6 inch end cord. Hang it on your tree, outside your home, or any other area that needs some illuminated magic. UL listed for indoor and outdoor use. Plug is included and bulbs are sold separately.