The SDC-12 converter has 20-35vDC input, 13.8vDC, 12Amps output. Samlex DC - DC power converters housed in a metal case that can be easily mounted directly to (or near) your equipment. Step DC voltage up or down. Models are available with output power ranging from 25 Watts to 45 Amps. More info... Samlex_SDC-12.pdf