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Amazon.com: UMLIFE 4PCS AC/DC to DC Step Down Buck Converter AC 5-30V DC 5-48V 24V 36V 48V to DC 2.5-35V 12V Voltage Regulator Board 2A Adjustable Volt Power Supply Module : Electronics
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DC to DC High Power Step Down Buck Converter Adjustable Power Supply Module 12A DC 5-40V to DC 1.2-36V
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High Power 800w 30a Dc-dc Step-down Module Down Buck Converter Dc20-70v To Dc2.5v-58v Out 0.1-30a - Home Theater Amplifiers - AliExpress
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DC-DC 400W High Power Supply Step Down Module CVCC 10.5V-60V to 0-45V Buck Voltage Converter - Step Down Module - Arduino, Robotics, Raspberry Pi, ESP8266, Learning DIY, Development board ICStation
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Amazon.com: D-Planet [4-Pack] 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulator Module : Electronics
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