This heavy-duty 5-pin automotive relay is engineered to handle high-current applications up to 100A, making it ideal for demanding electrical systems in cars, trucks, marine vessels, and off-road equipment. The relay features a robust waterproof aluminum shell that provides exceptional protection against moisture, dust, and harsh environmental conditions, ensuring reliable performance even in challenging operating environments. Compatible with both 12V and 24V DC electrical systems, this versatile relay module offers universal fitment for a wide range of vehicles and equipment. The standard 5-pin configuration allows for straightforward installation and integration into existing electrical circuits. Built with high-quality copper terminals and durable internal components, this relay is designed for stable operation under continuous high-load conditions. Whether you're upgrading your vehicle's electrical system, installing auxiliary lighting, winches, or other high-power accessories, this relay module delivers the dependable switching performance you need. The compact cube design saves space while the aluminum construction aids in heat dissipation during operation.