Make a Christmas light display unique to your home or business exterior this holiday with this SPT-1 stringer. This 500 foot, 18 AWG green wire stringer has 400 intermediate sockets spaced 15 inches apart for screw-in C9 bulbs. Use this stringer with C9 incandescent, C9 retrofit LED, or G50 globe shaped bulbs. Available for indoor/outdoor use, this stringer has a lead and tail length of 15 inches each. There are no end plugs, so you determine length and position of the plugs. Let your imagination go wild with lighting design possibilities!