Feature: 1. The display is made of high‑quality materials, light weight, rainproof, strong and durable. 2. The LCD display can clearly display status and data, the backlight allows you to see the screen clearly in a dim environment, and the buttons are quick and easy to use. 3. The controller is brushless, works silently, and is sensitive to the state of the electric bicycle. 4. Easy to install and use, with bracket for LCD display, suitable for 22.5mm/0.9in handlebars. 5. Suitable for electric bicycles and scooters. Specification: Condition: 100% brand new Item type: LCD Instrument Controller Material: Aluminum film + plastic Color: As picture shown LCD appearance size: Approx. 80x48x48mm/3.1x1.9x1.9in LCD display screen size: Approx. 52x38mm/2x1.5in Controller size: Approx. 88x52x30mm/3.5x2x1.2in Mounting handle diameter: Approx. 22.5mm/0.9in Weight: Approx. 360g Undervoltage protection: 19V/30V, 30V/42V Optional voltage: 24V/36V, 36V/48V Power: 250W/350W Note: Each cable is marked with a color for different purposes. Red: positive power supply Black: negative power supply Yellow: power output Brown: lamp positive White: lamp negative Blue: indicator signal Green: signal reception