Wall Charger - 5V USB
Cost: $3.95 each
Description: High quality switching 'wall wart' AC to DC 5V 500mA wall power supply manufactured specifically for Spark Fun Electronics. These are switch mode power supplies which mean the output is regulated to 5V (no more 14V outputs!). Please note, this specific supply (5V/500mA) is also FCC/CE certified!
These have a standard USB 'A' connector for the output so you can power your Arduino through a USB cable. Any device that uses a USB cable for charging or power can be powered with this supply.
Check out our Unregulated Power Supply Tutorial!
Note: This works with 100-240VAC inputs.