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In stock tiny AC Switchmode 12 watt regulated power supply, with 3.3 volt 3 amp DC output, 3.3 volt AC wall mount adapter.
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AC DC 110V 220V to 3.3V 700mA 2.3W Switching Switch Power Supply Buck Converter Regulated Step Down Voltage Regulator Module - AliExpress
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Ac 110v 220v To Dc 3.3v 5v 9v 12v 15v 24v Switching Power Supply Board Isolated Switch Step Down Module - Switching Power Supply - AliExpress
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Amazon.com: ALAMSCN 3.3V 5V MB102 Solderless Breadboard Power Supply Module with 9V Battery Clip Power Cable 2.1x 5.5mm Male DC Jack Plug for Arduino (Pack of 3) : Electronics
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