Electrical sockets, also known as power outlets or electrical receptacles, are devices installed in walls that allow electrical appliances to connect to the power supply. They provide a safe and convenient way to access electricity for various devices, such as lamps, computers, and kitchen appliances. Sockets come in different types and designs, depending on the country and electrical standards. Most sockets have two or three holes for prongs, which are the metal connectors on the plugs of electrical devices. Proper installation and use of electrical sockets are essential for safety and to prevent electrical hazards.