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12VDC 1A 2.1mm Positive Center Wall Adapter Switching Power Supply
High quality switching 'wall wart' 'wall adapter' AC to DC 12V 1A wall power supply. These are switch mode power supplies which mean the output is regulated to 12V. They take 100-240Vac 50/60Hz input and output 12V 1A. These will power most projects that don't require more than 1A of current. Center-positive 5.5x2.1mm barrel connector.
They are design to take up ONE position on your outlet strip or wall outlet. These will convert international voltage (100V-240Vac 50/60Hz) automatically; no transformer needed. The cable is about 4.5 ft. long. There is an LED indicator for supply OK. Great for many electronic projects!
There are 3 things to watch for when choosing wall adapter:
1) Voltage and Current (12V, 1A)
2) Plug size (2.1mm)
3) Center polarity (Positive center)