Yu - Sheng Electrical Enterprises Company Ltd. has founded in 1984. Our goal is developing various power supply to solve the urgent demand of power. As professionals in electrical machinery, we are specialized in R & D, designing and manufacturing of power supply equipment and devices, especially full range of voltage regulators and transformer regulator are leading in the specific field in Taiwan as a result of our experiences and concepts, furthermore, we successfully quilt and brought to market U.P.S. and industrial power supply. We always do our best.