Omega 22019 Car Power Supply 22019 Is Dc/dc Car Convertor With Max Capacity Load Of 800ma Ideal For Most Of Battery Operated Products And Hand Held Games. Features: 800ma Dc/dc Car Convertor Polarity Selection 6 Stages: 3, 4.5 , 6 , 7.5, 9, & 12 Volts 4 Detachable Output Jack: -3.5mm Male Jack -0.75 X 2.35mm Female Jack -1.7x4.0mm Female Jack -2.1x5.0mm Female Jack.