Feature 140A Powerful: Automotive relays switch up to 40 amps, handling high power applications reliably and efficiently, even in extreme outdoor conditions. 2For Car Systems: Operates on a standard 12V direct current electrical system, commonly found in automotive applications, bringing you reliable and professional use. 3Heavy Duty: Made of high strength metal and nylon. Designed for durability and longevity in harsh automotive environments, withstanding vibrations. 4Color Coded Wire: Comes equipped with 12 AWG tinned copper wiring, ensuring secure electrical connections and easy installation, reliable and dependable. 5Waterproof Design: With waterproof and dustproof characteristics, this relay can resist moisture, but should not be immersed in water for a long time. Item Type: Car Relays Material: Metal + Nylon Operating Temperature:-40C-+125C Environmental Temperature:-40C-+125C Purpose: Automotive Controls Package List 2 x Relays Note Ensure tight connections (especially on the load side), read specs on the items description and make sure the environment of use follows the relay's safety requirements