What is an automotive relay for?

An automotive relay is an electrical component used to switch power from a battery or alternator to various automotive accessories, such as lights, air conditioning, and fuel pumps. It works by using a low voltage signal from a switch or computer to activate a high-powered electromagnetic switch, which in turn connects or disconnects power to the accessory. This allows the accessory to be controlled from a switch or computer without requiring a high voltage signal to be sent directly to the accessory. Overall, automotive relays are important components that help to control and power a variety of automotive systems.