Features1This is a 36V 800W electric scooter electric bicycle brush dc motor speed controller. 2Applicable motor: 48V 350W-500W brush motor. 3Controller wiring instructions: In order to work, the motor can be connected to at least 4 joints. 4Simple and convenient for installation, easy to use and operate. 5Suitable for electric tricycle, scooter, etc.SpecificationItem Type: Brush Motor ControllerModel: YK31CMaterial: aluminumColor: as picture shownSize: approx. 9x6.5x4cm/3.5x2.6x1.6inchRated power: 800WShifter: 1-4VBrake handle: the machine runs normallyApplicable motor: 48V350W-500W brush motorApplicable for: electric tricycle48V500W domestic trade thread head: 4 head48V500W foreign trade thread head: 8 headPackage List1 x Brush Motor Controller