Samlex America Non-Isolated Step-Down 24VDC-12VDC Converter 20A. With a wide input voltage range of 20 to 30 Volts this DC-DC Converter from Samlex America works from an external 12V source such as a battery to provide the output current your devices demand. With high efficiency and reverse polarity protection the Samlex America 20A Non-Isolated Step-Down 24VDC-12VDC Wall Plug Connector is a cost-effective method for converting your negative ground systems into a positive ground system. The high efficiency of this Samlex America Non-Isolated Step-Down 24VDC-12VDC Power Supply makes the Samlex America SDC-23 DC-DC Step-Down Converter a cost-effective method for keeping your electronics functioning during non-isolated negative ground systems. Specifications for Samlex America 20A Non-Isolated Step-Down 24VDC-12VDC Converter: Manufacturer: Samlex America Color: Black Features of Samlex America 20A Non-Isolated Step-Down 24VDC-12VDC Converter Advanced switchmode design Mount in almost any location Compact and light weight Reverse polarity protection High efficiency Current limiting circuit Overvoltage crowbar circuit Non-Isolated for negative ground system Input: 20-30 VDC Output: 13.8 VDC Amps: 20 Amps Weight: 2.2 (lbs) Weight: 1 (kg) Dimensions: 7.75 x 4.75 x 2.4 (in) Dimensions: 19.7 x 12.1 x 6.1 (cm) Warranty: 2 Year Limited Applications:Earth moving equipment Heavy trucks Buses Marine vehicles CB radios 12 Volt lighting systems AM/FM sound systems Package Contents: Samlex America 20A Non-Isolated Step-Down 24VDC-12VDC Converter Samlex America SDC-23: Non-Isolated Step-Down 24VDC-12VDC Converter 20A