This holiday season, your home and commercial lighting designs are easy with this heavy duty, SPT-1 stringer. The green, 18 AWG wire stringer has candelabra sockets for C7 Christmas lights. The sockets are spaced 12 inches apart, making them ideal to outline a building. UL listed for indoor/outdoor use, the 500-foot stringer has a lead and tail length of 12 inches each. There are no end plugs, so you determine length and plug position. Use this stringer to make your house or business lighting display stand out this holiday season!