HWS15A-150A/A Industrial Power Supplies TDK Lambda HWS15A-150A/A Single-Output Industrial Power Supplies features include a limited lifetime warranty, UL508 approval, SEMI F47 compliant (high line AC), universal input (85VAC to 265VAC)and has a higher efficiency than the HWS series. TDK Lambda HWS15A-150A/A Power Supplies are ideal for use in industrial and test and measurement applications.