Horn Wiring Harness Relay Kit for Car 80a 4pin Spst Normally Open (Relay 4 pin Double Horn Wiring Harness, 12V) This relay kit is designed for use with 12V DC power systems and supports a current rating of 80 amps.It features a normally open SPST relay with a pure copper coil and full copper pins, providing electrical performance.The relay has a mechanical life of over 10, 000 cycles and is housed in a fully transparent, sealed, and waterproof composite shell that withstands harsh temperatures and under-hood conditions.The wiring harness simplifies installation with color-coded wires for easy connection to loads and accessories.Includes relay, fuse, tie, and copper wire.Designed to upgrade a single horn setup to a dual horn configuration.The wiring is protected by a bushing wrap for added.Suitable for use in automobiles and other devices equipped with a 12V DC power source.