With 50 years of history, Cosel is a professional manufacturer of AC-DC switching power supplies, DC-DC converters and modules. Cosel is the world's leading manufacturer of high-quality, ultra-small AD-DC power supplies, advanced technology DC-DC converters, and efficient and easy-to-use noise filters. The Cosel portfolio includes high-quality, ultra-small AC-DC switching power supplies and advanced technology DC-DC converters. Cosel's AC-DC switching power supply handles general-purpose AC inputs and outputs power from 3W to 10W. The Cosel PLA series is an economical sealed AC-DC switching power supply with high efficiency and harmonic attenuator. Cosel's high-efficiency DC-DC converters use industry-standard voltage and pin distribution to deliver up to 700W of output power. The Cosel DHS series DC-DC converters offer high efficiency and reliability in a compact package.