1Wide Application: Brushless motor speed controller is widely suitable for electric scooters, electric motorcycles, electric bicycles and tricycles. 2Advantages: Brushless controller low interference, long life, low maintenance cost, provide steady speed and sensitive control of braking. 3Durable Construction: The brushlwss controller shell is made of aluminum alloy, which is wear resistant and impact resistant, sturdy and durable. 4Heat Dissipation Design: The controller shell adopts groove design, which can protect the internal circuit and avoid thermal overload. 5Easy Use: This Dc motor controller adopted simple design, wires and connectors are durable, with a very stable performance, convenient to use.