Abstract: A microwave oven including an oven housing defining an oven chamber, a magnetron in the oven housing, and three alternative paths along which electrical power may be supplied to the magnetron, the three alternative power supply paths including an alternating current (AC) power supply path that enables the oven to be electrically connected directly to AC mains, a first direct current (DC) power supply path that enables the oven to be electrically connected directly to an electrical socket in a motor vehicle, and a second DC power supply path that enables the oven to be electrically connected directly to a battery.