Feature 1This 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.Condition: NewItem Type: Brush Motor ControllerModel: YK31CMaterial: aluminumColor: as picture shownSize: approx.9x6.5x4cm/3.5x2.6x1.6inchRated power: 800WWorking voltage: 36VUnder voltage: 31.5 and / - 0.5 WShifter: 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 head.w-e-text table td,.w-e-text table th,.wang-edit-text table td,.wang-edit-text table th{border: .5pt solid 000;};.w-e-text table,.wang-edit-text table{border: 1px solid 000 important;}Package List1 x Brush Motor ControllerNoteIf the power cord is not connected correctly,it will burn out.