NH Research designs and manuafactures the test equipment used by producers of electronic power supplies, UPSs, DC/DC cnverters, telecom rectifiers, battery chargers, adapters and other power conversion devices. Its test systems are typically used at our customer's final test station to insure their products meet performance and quality specifications. The headquarter is located in Irvine, California, NH Research hs been in this business over 30 years.