- Spacing: 12 inches
- green wire
C7 50' x 50 Socket 18ga SPT1 Green Wire 12 Spacing. Order a green C7 light socket string from Artificial Plants and Trees, and simply add the bulbs of your choice. These wire socket strings come in three lengths, and one of them will surely suit your Christmas lighting needs. This light socket string is available in lengths of 50', 100', and 1,000'. Don't forget the bulbs - this product is for the socket string only!