Designed for electrical systems of all vehicles and boats, this 5-pin relay is rated up to 80A, making it easy to handle heavy duty electrical applications. Uses 12V DC voltage specification, making it suitable for a wide range of vehicles such as cars, vans, SUVs, boats and more. The relay is constructed using a sturdy plastic housing combined with metal contacts to ensure long term stable operation. The standard 5-pin configuration is simple and easy to install and replace, so no professional tools are required. The compact body measures just 1.1 x 1.1 x 1 inch and allows for easy installation in tight spaces. The relay is particularly suitable for dual battery separation charging systems, which can effectively manage the vehicle's electrical load and protect the safety of the circuit. 1 relay per package is ideal for automotive electrical repairs and modifications