The BK 1692 Switching Mode DC Power Supply provides high current output in a lightweight and compact package. It is suitable for a variety of users and is especially useful for powering DC mobile radio equipment on the bench. It provides a variable voltage output from 3V to 15V or a fixed 13.8V output at 40A continuous operation. The efficiency can exceed 80% under the best conditions. Advanced circuitry protects against overload and provides immunity for RFI. A bright red and green LED display provides for an accurate and highly readable indicator of settings.