1. Scope of application: Suitable for cars, trucks, RVs, travel trailers, campers, SUVs, ATVs, UTVs, trucks, boats, etc. 2. Purpose: Just press the remote control key button to disconnect the cars power system. 3. Specifications: 14V DC 200A 4. Rated current: 500A 5. Working voltage: 12V 6. Control mode: remote