SamhyunCNS Co.Ltd has been a leading manufacturer of high voltage and power related products for over 20years and has thousands of satisfied customers for surge protective devices. We designed and manufacture a variety of Surge protector and Auto Recovery ELB. The company's reputation and distinctive image have been consistently developed under its brand name since founding in 1977. Our products for auto Recovery ELB and equipment protection are used in homes, businesses, plants and factories. In the field of power we have the accumulated technology and experience, and always seek new technology development. We are determined to provide you with the highest level of service and our customers enjoy the best products in the world.