1Will not produce noise and vibration when driving, softness and comfortable feeling. 2Reduce controller temperature rise, increase vehicle continuous travel mileage. 3More stable, higher efficient, lower current consumption, longer life. 4KT LCD4 display screen used for KT series controller, just suitable for KT series controller, does not apply to other controller. 5Made of high quality aluminium alloy and plastic material, sturdy, durable and long service life.Condition: 100% Brand New Item Type: Electric Bicycle Brushless Controller Material: Aluminum Alloy + Plastic Color: As Pictures Shown KT LCD4 Display Screen Used for KT Series Controller, Just Suitable for KT Series Controller, Does Not Apply to Other Controller Controller Parameter: Controller Box Size: Approx. 17.3x8.2x4.2cm/6.81x3.23x1.65inch Maximum Current: 302A Rated Voltage: DC36V/48V SpeedSet: 1-4.2V Rated Current: 15A Brake Input: Low-Level Low Volttage Protection: DC30/400.5v KT LCD4 Display Screen Parameter: Size: Approx. 6.5x2.5x4.3cm/2.56x0.98x1.69inch Can Automatic Identify and Compatible with 24V, 36V, 48V Power Supply Voltage Cable Length: 160cm/62.99inch Used for Connector 1. Data displayDisplay runningSpeedsingle running mileage and total running mileagerunning timeelectric assist devicemotor power and temperaturebattery voltage and charging statebraking state and using environment temperature and other bicycle parameters 2. Smart electric quantityTrue reflect battery electric quantityreal time record electric quantity consumptioninsure running mileage 3. Stall settingMultiple gears switch and assist gear automatic power savingshutdown state can reset when the shutdown occurs 4. Parameter settingHasseries of user parameter setting functionsmotor parameterSpeedmeasurement parameterSpeedlimit parameterpower parameterelectric assist controls parametercontroller minimum voltage and maximum current parameter and other operating model for configuration adjustment 5. Data viewUser can view the history and clear the drive dataview single or cumulative travel timerunning mileagemaximum and averageSpeedof single trip 6. Vehicle boostingHas 6KM/h electric assist functionassist sign flashes when assistcyclists can use it while driving carmakes vehicle easy and labor-saving 7. CruisingSpeedand constantSpeedThrough cruising configuration and displaycan maintain theSpeedautomaticallyallows vehicle to travel at constantSpeed 8. Night drivingWith backlit LCD display and headlamp switch control function can turn on the backlight of the gauges and headlights when driving at night 9. Password settingHas three power-on password settings 10. Automatic warningIn the event of a vehicle failure, you can request a different fault codingto facilitate vehicle inspection and maintenanceWith temperature display function, used for motor operation, and can realize overtemperature alarm and motor protection 11. Use five digital communication linesinstrument has good compatibility and interchangeabilitydifferent instruments can modify the data and copy the parameters directly; 12. The main engine part and the instrument operation button adopt the substructure designed to make the operation more reasonable and convenient 13.