300 LED Outdoor String Fairy Wedding Curtain Light Party DecorThis linkable design led decoration curtain light is composed of the controller and main curtain light two parts. the main curtain light is linkable design,each main curtain can be see as a unit, multiple main curtain light can be linked one by one, change to be a different length of curtain light, and most important, multiple curtain light after connected can be control by the same controller synchronously, so you can decide the length of the curtain