The POTOP Opto-Electronic Technology Co., Ltd. is the professional manufacture in the LED lighting. We promise that our Potop LED lightings have more than one year quality warranty and all life technology support. We are reponsible for the maintaining and repairs instruction or guide free of charge. And all of our product has got the CE, Rohs, FC certificate.Any products draw your attention, please feel free to contact me. And also welcome to brose our website ***** to know more information.