ICT's ICT1212-35AI2 converter is designed to operate from a negative or positive ground electrical system, providing complete isolation between primary and secondary circuits, as well as from the chassis. The high efficiency design saves energy, incorporates extra input filtering and spike protection, and is vibration and moisture resistant. Flange mounting is standard. An extra contact is provided that allows the converter to be turned on and off by a main or ignition circuit, saving energy and battery life.