The controller is brushless motor controller, can provide stable speed, sensitive control braking and steering. Also a sine wave controller, which can work smoothly and quietly. The controller housing is made of aluminum alloy, which can protect the internal circuit. The controller housing also has good heat dissipation to avoid thermal overload. A good motor conversion kit for electric tricycle, rickshaw, electric bicycle and so on. Condition: 100% Brand New Item Type: Motor Conversion Kit Material: Aluminum Alloy + Plastic Color: As Pictures Shown Controller Box Size: Approx. 20.3x8x4 cm/ 8.0×3.1×1.6 in Controller Parameter. Nomimal Voltage: 48VDC Output Power: 800W Rated Speed: 450r/min Rated Current: 22A. 1 x Wiring Pillar. The kit does not contain a battery, battery charger or battery case. Our listing price includes the value of goods, packaging cost, and export. Please check with your country’s. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.