Upgraded Version - Car relays built into the fuse holder with 30A blade fuse included, no need for a separate fuse holder, saving space and money. High-strength 14 AWG wires for the main contact. Easy Wiring - The relay sockets come with different color-coded wires for convenient wiring of loads/accessories. Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - N/O Output (87). Neat Mounting Design - The unique tongue-and-groove design on each edge of the socket makes it easy to connect all the relays together, ensuring a clean and tidy installation. Good Construction - 12 VDC (Max 14 VDC) and 30 A high switching capacity. Bosch-style 4-pin SPST relay. The metal mounting bracket on the electrical relay makes installation easy. Wide Application: Wide range of use, widely used for car headlights, fog lights, windshield wipers, starter motor, fans, speakers, traction control systems, etc. The fuse holder built into the automotive relay eliminates the need for a separate