The 4 Pin Relay Single-Pole Single-Throw (SPST) is a practical and reliable electrical device designed to make controlling a single circuit easy and efficient. With its intuitive design, the relay features a single input/output circuit, which simplifies the process of connecting and managing electrical components. The four pins on the relay's base are clearly labeled, making installation straightforward. The Common terminal serves as the central point of connection, streamlining the attachment of the circuit to be controlled. Meanwhile, the Normally Open terminal offers a hassle-free way to manage the switch contacts. By energizing the relay's coil, users can seamlessly transition the contacts from their initial open state to a closed position, effectively activating the connected circuit. Attributes:• Single input/output circuit (pole) for easy connection.• Four pins for straightforward installation• Coil pins (+) and (-) for control signal attachment• Energizing coil closes the contacts and activates the circuitApplications:This 4 4-pin relay is located in a lighting wiring harness to facilitate the control of a single circuit.