Description:Introducing the only C9/E17 Socket based lighting system. The Dynamic Light+HUB! Now expand your decorating options with our Patented technology that allows for LED string lights, C9 LED bulbs, and LED Light drops to be combined on one E17 socket cord. Say goodbye to endless extension cords as every socket can now be used as an outlet. We didn't invent holiday lighting but we reinvented it! Your imagination is the only restriction.