Easy of Installation: the battery disconnect switch kit comes with two copper plates, two metal clamps, two copper nuts, it means you could install it easily in both positive or negative side. Stable & Reliable Performance: It comes with two remotes in case of missing. Everytime you leave the car for a long time it protects the battery from dying and prevent from getting into the situation where you cannot start the engine. Widely Applications: Our remote battery disconnect switch is widely used for a range of scenarios like cars, trucks, RVs, etc. Thanks to its compact size it fits in some narrow space. Specifications: The remote kill switch for car has a continueous rated current of 250 amps and instantaneous current of 450 amps. The voltage for it is at 12V. Furthermore, the kill switch for car works under temperature from -40 degrees to 85 degrees. More Convenience & Anti-Theft: The remote battery disconnect switch is way more convenient than others,you could shut down the battery without opening the hood, simply press the unlocking button, preventing the battery from dying while it's not at usage.