Make a lighting display unique to your home or business exterior easily and safely this holiday season. This heavy duty 25-foot stringer has intermediate sockets for screw in bulbs spaced 12 inches apart for use with C9 incandescent, C9 retrofit LED, and G50 globe shaped bulbs. For indoor/outdoor use, the Christmas light stringer has a lead and tail length of 6 inches each. Two sets can be connected safely with male to female connections. Let your imagination soar with these ease to use and economical stringers.