Rich Content: There is 15A controller, LCD S866 instrument, 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 instrument adopts high quality ABS material which is light weight, rain proof and durable, making it strong for heavy duty work. Function Description: LCD display panel has many functions, LCD backlight display, can clearly display status and data; When riding a bike, the product will display many useful data on your bike, such as power display, speed display, power indicator, fault indication, total mileage, single mileage, current speed, average speed, maximum speed, gear display, etc. Application Scope: Suitable for 250W, 350W 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 250W, 350W Bicycle Motor Gross Weight: Approx. 545g/19.2oz Product Size: Controller Box 82x52x30mm/3.2×2.05×1.2in, Panel 81x48mm/3.2×1.9in Controller Rated Voltage: 36V DC /48V DC Controller Maximum Current: 15A Controller Speed Setting: 1-4.2V Controller Brake Input: Low Level BOOSTER: 1:5 Applicable Motor Power: 250W, 350W Connector Type: Fully Waterproof Connector. S866 instrument working voltage: DC 24V, 36V, 48V, 60V compatible (instrument selection setting). S866 instrument function description: 1. Display function: speed display, power indicator, fault indicator, total mileage, single mileage 2. Control setting functions: power switch control, wheel diameter setting, idle auto sleep time setting, backlight brightness setting, start mode setting, drive mode setting, voltage level setting, controller limit value setting 3. Communication protocol: UART Display all contents of the screen (display all contents for 1s after startup) 3.1 Display of battery quantity and BMS remaining quantity 3.2 Multi-function display area: total mileage ODO, single mileage TRIP (unit: mile, km), single startup TIME TIME, battery voltage VOL, DST: battery life 3.3 Speed display area AVG: average SPEED, MAX: maximum SPEED, SPEED: current SPEED: unit: Mp/h km/h The speed signal is taken from the Hall signal in the motor and sent to the instrument by the controller. (Time of a single Hall cycle, unit: 1MS) The instrument will calculate the true speed based on the wheel diameter and signal data (the amount of magnetic steel required by the motor hall) 3.4 Vehicle power gear adjustment, 0-9 digital display and bar display. 1 x Motor Controller. 1 x Thumb Throttle. 1 x Controller Wiring Manual. Conversion kit must be fully waterproof kit. 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.