The Air Actuated electric trailer brake controller provides smooth brake actuation. The electric brakes on the trailer operate off the air brake system of the tow vehicle. When the brake pedal is depressed, the application of the electric trailer brakes is proportional to the vehicle’s brake pedal pressure. Operates two, four or six electric trailer brakes. Red indicator light shows braking intensity and proper function. May be converted from a negative to a positive ground system. Compact case design with textured black surface, mounting bracket and screws included for easy installation.