Outlets, also known as electrical sockets or receptacles, are devices installed in walls that provide access to electrical power. They allow users to plug in various appliances and devices, such as lamps, computers, and chargers, enabling them to operate using electricity from the power grid. Most outlets are designed to accommodate standard electrical plugs, which come in different shapes and sizes depending on the region. In the United States, for example, the common outlet type is the NEMA 5-15, which has two flat parallel slots and a round grounding hole. Proper installation and safety measures are essential to prevent electrical hazards.