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Amazon.com: HiLetgo 10pcs LM317 DC-DC Converter Buck Step Down Circuit Board Module Linear Regulator LM317 Adjustable Voltage Regulator Power Supply : Electronics
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TORCHSTAR Step Down Voltage Convertor 10-28V AC to 12V DC, AC/DC to DC, 15-40V DC to 12V DC Power Supply, IP68 Waterproof Ac to Dc Converter, LED Driver for Low Voltage Landscape
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DC-DC converter circuit (isolated type) | Toshiba Electronic Devices & Storage Corporation | Asia-English
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