Electric trailer brakes are a type of braking system used in trailers to enhance safety and control. These brakes are activated by an electric signal from the towing vehicle, allowing the trailer to brake independently from the vehicle. Typically, they consist of an electromagnet and brake shoes inside a drum, or in some cases, disc brakes. Electric trailer brakes are commonly used for trailers that are heavier or carry larger loads, offering more efficient and balanced braking, especially when traveling downhill or in emergency situations. They can be adjusted to suit the weight of the trailer and are usually controlled via a brake controller installed in the towing vehicle.