Item Type: Electric Bike Motor Controller Material: Aluminum Alloy, Plastic Rated Voltage: 36V 48V Universal Maximum Current: 22A Package List 1 x Electric Bike Motor Controller 1 x Controller User Manual 1 x Instrument 1 x Instrument User Manual 1Applicable Models: This motor controller and color display screen kit is suitable for 36V500W 36V750W 48V500W 48V750W hall brushless motors. 2Applicable Handlebar: With screen stand, this motor controller is suitable for 22.2mm handlebar, pay attention to the size. 3Premium Heat Dissipation: The shell of the motor controller is designed with grooves to ensure effective heat dissipation and avoid thermal overload. 4Aluminum Alloy Material: The controller is made of excellent aluminum alloy, which is corrosion resistant and wear resistant, has a long service life. 5Easy to Install: Comes with a compact size and a light weight as well, the easy installation can be quickly completed.