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Amazon.com: 12V AC/DC Power Adapter 5.5mm x 2.1mm Plug 1A(1000MA) UL Listed Power Supply : Electronics
![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 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](https://m.media-amazon.com/images/I/61u4Hp7pmvL.jpg)
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
![Where exactly does the ground line go in an AC-DC power supply? - Electrical Engineering Stack Exchange Where exactly does the ground line go in an AC-DC power supply? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/DtON3.gif)