1Electric Bicycle Motor Controller: Can provide stable speed and sensitive control of braking and direction changes. 2Controller S866 LCD Display Kit: Using ABS material, light, rainproof, durable, LCD backlight display, can clearly display status and data. 3Good Heat Dissipation Function: Controller shell is made of metal with groove design, which can protect the internal circuit and avoid thermal overload. 4Control Setting Functions: Power switch control, wheel diameter setting, idle speed automatic sleep time setting, backlight brightness setting, startup mode setting, drive mode setting, voltage level setting, controller limit value setting. 5Strong Compatibility: LCD instrument controller kit is used to convert the lithium battery of bicycles or scooters into electric riding, usually suitable for 1000W motors. Item Type: S866 LCD Instrument and Controller KitColor: As Pictures ShownBooster: 1:5Material: Aluminum Alloy + ABS PlasticWeight: Approx.714g/25.2ozController Rated Voltage: DC 36V/48VController Maximum Current: 30AController Speed Setting: 1-4.2VController Brake Input: Low LevelApplicable Motor Power: 1000WController Box Size: Approx. 149x84x42mm/5.9x3.3x1.7in, Meter Size: Approx. 81x48mm/3.2x1.9inController Wire Color Definition:1. Yellow, Green, Blue Single Big Head Wire: Motor Wire2. Red-white-black-blue-green-yellow Double Row Six-wire Port: Motor Wire3. Red and Black Single Big Head Line: Power Line4. Red, Blue, Black, Green and Yellow Single-row Five-wire Port: Instrument Line5. Black and Yellow Lines (two): Power off Brake Handle Line6. Red and Black Lines: Throttle Dial Line7. Brown-black-yellow Line: Power Sensor Line8. Black and Red Lines (two): Headlight LinesMeter Working Voltage: DC 24v, 36v, 48v, 60v Compatible (meter Selection Setting).Instrument Function Description:1. Display Function: Speed Display, Battery Indicator, Fault Indicator, Total Mileage, Single Mileage2. Control Setting Functions: Power Switch Control, Wheel Diameter Setting, Idle Speed Automatic Sleep Time Setting, Backlight Brightness Setting, Startup Mode Setting, Drive Mode Setting, Voltage Level Setting, Controller Limit Value Setting.3. Communication Protocol: Uart Displays All the Contents of the Screen (full Display After Power on for 1s)3.1 Display of Battery Power and Remaining Power of Bms.3.2 Multifunction Display Area: Total Mileage Odo, Single Mileage Trip (unit: Mile, Km), Single Boot Time Time, Battery Voltage Vol, Dst: Battery Life3.3 Speed display AreaAvg: Average Speed, Max: Maximum Speed, Speed: Current Speed: Unit Mp/h Km/hThe Speed Signal is Taken from the Hall Signal in the Motor and Sent to the Meter by the Controller. (the Time of a Single Hall Cycle, Unit: 1ms) the Instrument Will Calculate the Real Speed According to the Wheel Diameter and Signal Data (the Number of Magnets Required by the Motor Hall)3.4 Vehicle Power Gear Adjustment, 0-9 Digital Display and Gear Bar Display;Instrument Environment Setting Instructions:P01: Backlight Brightness Level 1 is the Darkest and Level 3 is the Brightest;P02: Mileage Unit, 0: Km: 1: Mile;P03: Voltage Level: 24v 36v 48v 60v 64v (default 36v)P04: Sleep Time: 0, No Sleep. Other Numbers Are Sleep Time, Range: 1-60 (in Minutes).P05: Help Gear: 0, 3 Gear Mode, 1, 5 Gear Mode.P06: Wheel Diameter: Unit. Inches; Accuracy: 0.1; This Parameter is Related to the Display Speed of the Instrument, and Needs to Be Entered Correctly.P07: Speedometer Magnet No.: Range: 1-100.