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AC-DC Adjustable Voltage Regulator LM317 Buck Boost Power Supply Module AC 5V-20V to DC 1.25V-30V Board - AC-DC Convertor - Arduino, Robotics, Raspberry Pi, ESP8266, Learning DIY, Development board ICStation
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220/230v Ac To 12v/5v DC Regulated Power DC Converter Bridge Rectifier | Power supply circuit, Circuit, Power supply
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