LCD Display Device for 5/5.5 Inches Size. This display is compatible only with 36V 12A controller or JIPIN controller. Please confirm the controller model before purchasing. Incompatible controller models may result in throttle malfunction. Display wiring instructions (match wiring by color during installation): Red wire: + (power supply voltage) Black wire: - White wire: Controller switch control line Blue wire: RXD signal line Yellow wire: TXD signal line Green wire: Acceleration signal line Note: Instrument settings for 24V/36V voltage: Press and hold the middle button for 3 seconds to switch modes. Use the up and down buttons individually to increase or decrease gears. Press both up and down buttons simultaneously to enter the settings interface. Press the middle button to toggle between settings, use up and down buttons to adjust parameters. Press both up and down buttons simultaneously to save settings. Material: Plastic Color: Black Package Contents: 1 x Scooter Display Note: The package includes only the items listed above. Other accessories are not included. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.