Feature:1. Metal Controller: The controller shell uses high quality aluminium alloy metal with design, which has a good heat dissipation function and can protect the internal circuit to avoid thermal overload.2. LCD4 Display Meter: The LCD4 Display Meter can display many useful data, you can easily view these data, such as power display, battery voltage, backlight display, headlight display, brake display, riding speed, maximum speed, total one way distance, for pas sign, 6km/h thrust power assist, cruise function, etc.3. Easy to Install and Use: The electric motor controller kit is very convenient to use, just follow the wiring diagram for wiring. The LCD display meter is easy to install.4. Stable and Sensitive Control: This controller set allows stable and sensitive speed control of braking and direction changes.5. Application: The kit includes KT 22A full waterproof controller, LCD4 display meter, 130X throttle, 8C power assist sensor, 1 pair brake levers and 1 to 4 wire, which is suitable for 36V/48V 500W brushless motor electric bicycle conversion.How to Use:Controller Wiring Instructions: The controller can be connected to the corresponding line interface to realize the function; just define the wiring according to the line color of the controller.1. Black single large end wire with 9pin: Waterproof motor wire2. Red and black single wire: Power cord3. Black single large end wire with 8pin: