a 5V 2A wall wart
Look at your drawer with disused mobile phone chargers. Many can supply 2A and will indeed do great for this application (and power the Arduino to boot - use the 5V pin, not the Vin).
a 5V 2A wall wart
Look at your drawer with disused mobile phone chargers. Many can supply 2A and will indeed do great for this application (and power the Arduino to boot - use the 5V pin, not the Vin).