TIME-DELAYED DIGITAL BRAKE CONTROLLER: Our time delay brake controller can increase at a fixed rate within a set time period to activate trailer braking. Suitable for towing various types of trailers, such as RVs, trailers, trucks, and sightseeing vehicles. And compatible with Ford, General Motors, Chevrolet, Dodge RAM、 Various types of vehicles such as Toyota and Jeep,with 2, 4, 6, and 8 Brakes