Electronic 55 Amp Converter / 10 Amp Charger - The Parallax 7400 Series electronic converter/charger provides quite, ultra-clean, filtered DC power enabling electrical systems to meet the sophisticated needs of todays recreational vehicles. Parallax converter/chargers provide filtered power free from spikes or surges that can hinder electrical systems and accessories. The 7400 series delivers bright, flicker-free lighting and smooth appliance operation. Its FCC Class B certification means that there is minimal interference with TVs, radios and emergency channels. Full output available for battery charging. (Note: This unit requires an AC/DC Distribution Panel, not included.) UL/CUL listed. Dimensions: 4-1/8 inch H x 7 inch W x 12-3/8 inch L.