Pearl have a created an easy to fit and robust range of relay units. This particular unit is a 12 Volt 20 Amp micro relay. Pearl Micro Relay. Relay used for specific applications within the accessory market, must be fitted by a qualified auto electrician.
The Micro Relay 12V 4-Pin Normally Open Contact - High Tech Parts PR47 would be most suitable for applications requiring precise, reliable control of high currents, such as in industrial automation, robotics, and machine control systems.