Car lighter outlet, round, with installation

Electrical and standard specifications Voltage: The port provides a nominal power of 12 volts in most passenger cars and light trucks, and can reach up to 24 volts in some heavy trucks and marine vehicles. Maximum current (Amperes): The maximum current varies depending on the vehicle design and the fuse size of the port. The fuse usually ranges between 10 and 20 amperes, providing a maximum power of approximately 120 to 240 watts. It is important to check the fuse rating in your vehicle to avoid overload. Poles: The positive pole is connected to the central terminal inside the socket, while the outer shell (metal body) is connected to the negative pole (vehicle ground). Standard dimensions: According to SAE J563 specifications, the internal diameter of the standard socket is approximately 21 mm (usually between 20.9 mm and 21.5 mm depending on type A or B). This size is designed to accommodate plugs with a diameter ranging between approximately 20.7 mm and 21.3 mm. Common additional features Many aftermarket and modern ports come with additional features: Water/dust resistant cover: Many ports designed for external installation or in boats and off-road vehicles have a cover to protect them from weather conditions. Built-in protection: Some products often include an internal fuse (usually 10 or 15 amperes) to prevent electrical shorts or overloads when installed. Manufacturing materials: Usually made from durable, heat-resistant ABS plastic to ensure robustness and safety.