Features1Brushless controller shell is made of aluminum alloy, and the notch design is sturdy and durable. 2Due to the good heat dissipation function, the internal circuit can be protected to avoid thermal overload. 3Brushless motor controller can provide stable speed and sensitive control of braking and direction changes. 4This display uses high quality materials, is light, rainproof, sturdy and durable. LCD backlit display can clearly display status and data. 5Universal in the range of voltage 36V to 60V, universal at 450W/500W power, current limit 25A.SpecificationItem Type: Brushless Motor ControllerMaterial: Aluminum Alloy, ABSController Box Size: Approx. 12 x 8.5 x 4.5cm / 4.7 x 3.3 x 1.8inVoltage: 36V-60V UniversalPower: 450W/500W GeneralCurrent: Current Limit 25APackage List1 x Controller1 x Display2 x User Manual