Terminals are essential components used to join electrical wires to devices, circuits, or power sources securely. They come in various types, such as ring, spade, or bullet terminals, and are often made from conductive materials like copper or brass for optimal electrical performance. Terminals are widely used in automotive, industrial, and residential electrical systems to ensure safe and reliable connections. Easy to install with crimping or soldering, terminals provide a stable and durable link, preventing loose or faulty connections, thus enhancing overall system safety and performance in various electrical applications.