36V 48V to 12V 60A 720W DC DC Step Down Converter Voltage Regulator – Daygreen
CUI 20W DC-DC Converter 48V (18-75V) to 12V 1.6A
Pro Chaser DC-DC 48V 60V 72V Converter Regulator Step-Down to 12V 300W 25A | eBay
36V 48V to 12V 100A 1200W DC DC Step Down Converter Voltage Regulator – Daygreen
Amazon.com: SUPERNIGHT 10A 120W Golf Cart Converter 48V 36V to 12V Regulator Step Down Waterproof DC/DC Transformer for Golf Cart Power Module and Club Car : Electronics