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, and other vehicles. The relay features a robust waterproof aluminum shell that provides exceptional protection against moisture, dust, and harsh environmental conditions, ensuring reliable operation even in challenging settings. Compatible with both 12V and 24V DC power systems, this versatile relay module fits a wide range of automotive and industrial applications. The durable construction emphasizes superior heat dissipation and long-term electrical stability, while the copper terminals ensure excellent conductivity and secure connections. The 5-pin configuration follows standard automotive wiring setups, making installation straightforward for mechanics and DIY enthusiasts alike. Whether you're upgrading your vehicle's electrical system, replacing a worn-out relay, or building custom automotive circuits, this industrial-grade relay module delivers the performance and durability you need for critical switching applications.