A simple general purpose desktop power supply used in electronic labs, with power output connector seen at lower-left and power input connector (not shown) located at the rear. A power supply is an electrical device that supplies electric power to an electrical load. The primary function of a power supply is to convert electric current from a source to the orrect voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power. Examples of the latter include power supplies found in desktop computers and consumer electronicsdevices. package include : 1 x Power Adaptor 12 Volt 1 Amp Charger SKU: PGI-006 Categories: Chargers, Prayog Blaster