Brand New Heavy Duty 12V Single Pole Relays and Socket Kit. 12 Volt 80 Amp 5 Pin Relay Socket with 5 Wires. Mechanical Life of 100,000 Cycles, Mechanical Life Expectancy: 10,000,000 Operations. These are Heavy Duty 80A Relays. This kit can be used to install Electric Fans, Electric Fuel Pumps, Electric Water Pumps, Door Handles Solenoids, Trunk Solenoids, Horns. Using this kit will eliminate high voltage drop in the wire, it allows your components to function properly.