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CUI 20W DC-DC Converter 48V (18-75V) to 12V 1.6A
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Isolated DC-DC Converter 600W 48V to 12V 50A
288W Car Converter DC 12V (9~30V) to 48V 6A Boost Voltage Regulator/Power Supply
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DC 48V Step-down to 12V 30A 360W Waterproof DC Converter Regulator - Walmart.com
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72V to 48V 10A 480W DC DC Step Down Converter Voltage Regulator w/ACC – Daygreen