Features: The 12V 500A Winch relays set with Remote Controller delivers robust power handling for heavy duty vehicles, featuring copper enhanced terminals that prevent overheating during extreme off road recovery operations. Engineered with iron housing, this relays systems ensures optimal conductivity while simplifying installation without special tools. Ideal for off road enthusiasts, truck owners, and professional mechanics requiring winch control solution for challenging terrain operate. Perfect for vehicle recovery missions, rock crawling adventures, or agricultural equipment maintenance where remote controlled winch operate enhances safety and efficiency. Fit various 12V automotive systems including SUVs, ATVs, and utility trucks, this heavy duty relays set outperforms standard switches through enhanced heat dissipation technology. Specifications: Component: copper, iron, plastic Size: About. 8.45x10cm/3.33x3.94in Voltages: 12V Current: 500A Package Includes: 1 Set Winch relays note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.