High Power & Stable Performance: Designed for high-power devices, this 200A relay ensures stable operation for vehicle batteries, water pumps, and other heavy-duty applications. Works efficiently at 12V for consistent performance under load. Convenient Wireless Control: Comes with two remote controllers for easy ON/OFF switching from a distance, making it ideal for cars, RVs, boats, and industrial machinery where manual wiring is impractical. Durable Waterproof Construction: The waterproof black casing offers protection from the elements, ensuring durability in harsh environments. The top mounting holes make installation easy and secure. Safe & Efficient Connections: Features copper battery clamps, multiple copper terminals, and 50A connectors for safe and reliable high-current transmission. Includes insulated power cables and metal washers for added security. Easy Installation: Clear terminal markings (85, 86, 87, 30) and polarity indicators ensure simple, error-free installation. Warnings like "#85 must connect to battery positive terminal" help prevent mistakes during setup. Item Name: Automotive Relay Material: Copper, PC Features: High Power, Stable Performance, Remote Control Operation Application Scope: Suitable for 12-volt Batteries And 2.5-displacement Cars Size Details: L: 4.6cm/1.81", W: 4.6cm/1.81", H: 4.5cm/1.77" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Set of Automotive Relay