Rich Content: There is 22A controller, S900 panel, 130X thumb throttle, 8C power assist sensor, 1 to 2 cable included in the package, the rich content can meet your needs to convert your electric bikes or repair the damaged part. Outer Housing: The controller housing is made of high quality metal with grooves designed to protect the internal circuitry from thermal overload due to good heat dissipation. High Performance: LCD panel adopts high quality ABS material which is light weight, has good toughness and waterproof properties, providing better protection for internal circuits, making it more durable. High Performance: S900 display has a variety of functions, can be used as a driving computer, and control the entire bike system after conversion, compatible with 36V and 48V voltage; Color display so you can more easily see the data on the panel, such as speed display, steering gear, power indicator, troubleshooting tips, total mileage and single driving mileage, headlight display, single time, according to top speed setting, automatic idle sleep time setting, backlight brightness Settings, set voltage level, PAS connection, help promote mode 6 km/h, Ensure mileage. External 3 way button for easy operation. Application Scope: Suitable for 500W motor; Main uses is for DIY electric bike, electric bike, electric scooter, folding bikes, etc. Easy to maintain, the lithium ion bike modification greatly enhances the pleasure of riding. Item Type: Electric Bike Conversion Kit Material: Aluminum Alloy + ABS Plastic Color: As Picture Shown Application: for 500W Bicycle Motor Gross Weight: Approx. 714g/25.2oz Product Size: Controller Box 120x53x32mm/4.7×2.1×1.3in, Panel 110x62mm/4.3×2.4in Controller Rated Voltage: 36V DC /48V DC Controller Maximum Current: 22A Controller Speed Setting: 1-4.2V Controller Brake Input: Low Level BOOSTER: 1:5 Connector Type: Fully Waterproof Connector. S900 instrument function description: 1, Display functions: speed display, power gear display, power indicator, fault hint, total mileage, single mileage, headlight display, single driving time display. Control and setting functions: power switch control, headlight switch control, 6Km/h point control, wheel diameter setting, maximum speed setting, idle automatic sleep time setting, backlight brightness setting, voltage level setting, power assist sensor connection. 1 x Motor Controller. 1 x Thumb Throttle. 1 x Controller Wiring Manual. Note that the modification kit must be fully waterproof. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 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 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.