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Pro Chaser DC-DC 36V 48V Voltage Converter Regulator Reducer to 12V 300W 25A | eBay
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Fulree® 48v 36v 24v To 12v 1a 2a 3a Dc Dc Voltage Step Down Buck Converter 48 36 24 Volt To 12 Volt Car Cctv Power Supply - Inverters & Converters - AliExpress
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48V DC to 12V DC 10A DC DC Converter - Dakota Lithium
12V/24V to 48V 10A 480W DC DC Step Up Converter Voltage Regulator for – Daygreen
PATRIOT POWER VOLTAGE STEP DOWN CONVERTER 24V/36V/48V TO 12V – Patriot Power Source