Feature:1. Packing List: Electric bike conversion kit include 22A controller, LCD S866 instrument, 130X thumb throttle, 8C speed assist sensor.2. Controller Housing: Made of high quality metal with design, it can the internal circuit due to good heat dissipation, thus avoiding thermal overload.3. Scope of Application: Suitable for 500W motor, DIY electric bicycle, electric vehicle, electric scooter, folding bike, etc. Easy to maintain, electric greatly improves riding fun, for cyclists who like challenge.4. Durable Material: Using ABS material, it is light, strong and durable, with good toughness and waterproof performance, providing better protection for the internal circuit.5. LCD Backlight Display: LCD S866 display meter has a variety of functions, which can clearly display the status and data. When riding bicycle, it will display many useful data on your bicycle, such as battery display, speed display, battery indicator, fault indicator, total mileage, single mileage, current speed, average speed, maximum speed, gear display, etc.How to Use:The interface on the controller can be connected to the socket of the accessory to realize the function. For details, please refer to the wiring diagram and manual.Specification:Item Type: Electric Controller S800 Instrument KitColor: As Pictures ShownMaterial: Aluminum Alloy + ABS PlasticWeight: Approx.584g/20.6ozController Box Size: Approx. 111x53x33mm/4.4x2.1x1.3in, Meter Size: Approx. 80x48mm/3.2x1.9inController Rated Voltage: DC 36V/48VController Maximum