MIK Solutions is a factory direct distributor of high quality holiday lighting. Our C9 1000 feet green wire spool wire with E17 C9 base 12" spacing comes with 1000 C9 sockets. This length is perfect for commercial and residential projects and can be cut to size to perfectly fit each section. You can use our snap on male and female connectors and extension wire (SOLD SEPARATELY) to connect between lines and to the an GFCI outdoor outlet. In addition, we recommend using our C9 LED bulbs that come in different color to avoid bulbs constantly burning out and enjoy a long lasting bright energy efficient display. Bulbs (SOLD SEPARATELY) are easy to install by simply screwing directly into E17 socket. C9 1000' Spool 12" Spacing 10 Amp Green Wire 1000 Total C9/E17 Intermed iate Sockets SPT-2, 10-amp (960 Watt) Green Wire Commercial Quality Admiral Brand Socket Max Run = 170 Sockets with 7 Watt Incandescent Bulbs Max Run = 480 Sockets with 1 Watt LED Bulbs Supply Power with SPT-2 Male Plugs (Not Included) Indoor/Outdoor Use Your satisfaction is our #1 priority and if you have any questions or issues, please contact our customer service.