Shenzhen Lianyun da Electronics Co., Ltd is a professional production of switching power supply manufacturers, has an independent R & D, production (and has its own SMT clean room), and sales organizations; the company's diverse product specifications and beautiful appearance. The Company's products designed in strict accordance with safety regulations standards: IEC950, 60335,61558, EN60335, 61558, UL1950, 1310,1012 and in full compliance with (UL/CUL CE SAA C-TICK KC TUV GS PSE FCC) certification.