Features： 1、Versatile Compatibility: Suitable for various electric tricycles, and motorcycles. Compatible with a wide range of direct current motors and other applications, providing precise speed control. 2、Long Lasting Quality: Made of high grade circuit boards, ensuring a longer service life. High efficiency, high torsion, low heat generation, reverse polarity guard, and high current guard rating. 3、Excellent Heat Dissipation: The controller shell is made of aluminum alloy with a groove design, ensuring excellent heat dissipation. Protects internal circuits and prevents overheating. 4、Low Failure Rate: Premium aluminum alloy materials used for circuits and interfaces ensures a low failure rate during prolonged usage, ensuring reliability and durability. 5、Sturdy Construction: Constructed with plastic and aluminum alloy material, high strength, sturdy and strong, ensuring durability and longevity for lasting performance. Specification： Item Type: Brushed Motor Speed Controller Material: Plastic + Aluminum Alloy Package List： 1 x Controller 1 x Throttle Handle