... can be used to extend about 5sets3.It's connetable and can be extended to max 10sets4.Long lifespan:100,000 ... are used for Christmas, Halloween, Easter and Spring Festival with the approval of CCC(China),CE and KEMA( England, Poland, Norway, Finland Sweden ... ). It collects the advantage of save lighting, less used electricity and long useful time together. Led curtain light is aiming at ...