This is why you usually plug them into your AC power outlets with AC adapters, which are power cords with small rectangular blocks on them. The block on an AC adapter includes a transformer that steps down the 120-volt AC wall power to aanbsp;...
|Title||:||Wiring Your Digital Home For Dummies|
|Author||:||Dennis C. Brewer, Paul A. Brewer|
|Publisher||:||John Wiley & Sons - 2006-12-06|