Jiangsu High Device Power Supply is located in Hai'an, Nantong City, Jiangsu Province. As a professional power supply manufacturer, it has a research and development management team in the power supply industry for over 10 years and is sold globally under the WELL SOURCE brand. Our factory has obtained ISO9001/3C/UL/CE and other quality system certifications. The factory covers an area of approximately 20000 square meters and the annual production capacity of switching power supplies can reach over 3 million units.