9V 2A AC DC POWER SUPPLY ADAPTER FOR ARDUINO

9V 2A AC DC POWER SUPPLY ADAPTER FOR ARDUINO is a type of external power supply 9V 2A AC/DC Power Supply Adapters. Often enclosed in a case similar to an AC plug. Adapters for battery-powered equipment may be described as chargers or rechargers ;(see also battery charger). AC adapters are used with electrical devices that require power but do not contain internal components to derive the required voltage and power from mains power. The internal circuitry of an external power supply is very similar to the design that would be used for a built-in or internal supply.