LCD Display Device for 55.5 Inches Size.This display can only be matched with 36v 12A controller or JIPIN controller.Please confirm the controller model before purchasing.Different controller models may cause the throttle to not work.Display wiring instructions (please correspond to the wiring color when installing):Red line: + (power supply voltage)black:-White: Controller switch control lineBlue: RXD signal lineYellow: TXD signal lineGreen: acceleration signal lineNOTE:Instrument setting 24V36V voltage description: long press the middle key for 3 seconds to switch the machine, single press the up and down keys to increase or decrease gears, press the up and down keys at the same time to enter the setting interface, press the middle key again to switch settings, and single press up and down to decrease the parameters Set, press the up and down keys at the same time to save after setting.Material:plasticcolour:blackPackage Contents:1 * Scooter displayOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +- 1-3cm.