Features： 1、PACKAGE INCLUDE: Riding li electric modification controller small kit includes 22A controller, LED900 display meter, 130X dial, 8 magnetic point PAS, one to two cable 2、COOLING HOUSING: The controller housing is made of quality metal with a fluted design, which protects the internal circuit due to good cooling function, thus avoiding thermal overload 3、LIGHT AND WATER PROOF: LED900 meter adopts quality ABS material, light and long lasting, adopt fine workmanship, with good toughness and water proof performance, to provide better protecting for the internal circuit 4、PARAMETER DISPLAY: The LED900 display meter has multiple functions that make it easier for you to view the data on the panel; When riding, many useful data will be displayed, such as power display, backlight display, headlight display, brake display, ambient temperature, motor temperature, one way time, total travel time, current speed, average speed, maximum speed, riding distance, total distance, 6KM/H thrust assist, cruise function, etc. 5、APPLICABLE SCENARIO: 500W gear brushless motor, mainly used in electric vehicle, electric scooter, folding car, etc. Easy to maintain, li ion modifications greatly enhance riding pleasure and suitable for cyclists who like a challenge Specification： Item Type: Electric Conversion Kit Material: Aluminum alloy and ABS plastic Controller Box Size: Approx. 125 x 65 x 40mm / 4.92 x 2.56 x 1.57in Display Size: Approx. 96 x 68mm / 3.78 x 2.68in Controller Rated Voltage: Direct current 36V 48V Controller Rated Current: 11A Controller Maximum Current: 22±1A Controller Speed Setting: 1-4.2V Controller Brake Input: Low level Controller Low Voltage Protecting: Direct current 30/40±0.5V Brushless Motor Power: 500W Connector Type: Full water proof connector 1 To 2 Wire Description: One end connect to the controller, while the other two ends connect to the instrument and the shifter Controller Wire Definitions: 1. Red, Black Single Wire: Power wire 2. Black Single Large Wire (9pin): Motor wire 3. Black Single Wire (9pin): 1 to 2 wire 4. Black Single Wire (3pin): PAS assist sensor wire Package List： 1 x Controller 1 x Display  1 x Throttle 1 x Assist Sensor 1 x Controller Wiring User Manual 1 x One to Two Connecting Cable