Harmer & Simmons provides Power Supply Solutions, both AC/DC and DC/DC, from 1W to 2kW to Telecom and industrial markets. Our standard range of products is supported by an outstanding experience in custom design power converters to match our customers’ most stringent and specific needs. Harmer & Simmons has over 20 years of experience supporting OEMs in Telecom and industrial applications.  Harmer &Simmons is providing DC telecom power solutions worldwide.