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 the wire colors during installation): Red wire: + (power supply voltage) Black: - White: Controller switch control line Blue: RXD signal line Yellow: TXD signal line Green: Acceleration signal line NOTE: Instrument settings for 24V/36V voltage: Press and hold the center button for 3 seconds to switch modes. Press the up and down buttons individually to increase or decrease gears. Press the up and down buttons simultaneously to enter the settings interface. Press the center button to cycle through settings. Use the up and down buttons to adjust parameters. Press the up and down buttons together to save settings. Material: Plastic Color: Black Package Contents: 1 x Scooter Display Note: The package includes only the items listed above. Other products are not included. Lighting and display differences may cause slight variations in the color of the item shown in the image compared to the actual product. Measurement error allowance is +/- 1-3 cm.