Characteristics: This display adopts good quality materials, lightweight, rainproof, sturdy and durable.<br> The LCD display can show the status and data clearly, the backlight allows you to clearly see the screen in the dim environment, buttons for quick operation, easy to use.<br> The controller is brushless type, works quietly and is sensitive to the condition of the electric bike.<br> Easy to install and use, comes with an LCD display holder and suitable for 22.5mm handlebar.<br> You can set a power -on password, control lights, cruise control and boost. The vehicle speed is divided into gears, the number of gears is 3/5/9 gears optional , and the rotation of the handle can be selected to split into gears or not.<br> Suitable for electric bikes, scooters.<br> Specifications: Material: plastic LCD metal; Color: shown as picture! Options: 2# 36V-48V Power: 250 W / 350 W Low voltage protection: 2 # 36V-48V: 30V-41V Waterproof : Rainproof Controller Size:Approx. 8.8 x 5.2 x 3 cm / 3.46 x 2.04 x 1.18 inch Display Size: Approx. 8 x 5 cm / 3.15 x 1.97 inch Weight: Approx. 332g Package List: 1 x LCD display 1 x controller Note:<br> Each cable is color coded for different uses.<br> Red: Power positive electrode<br> Black : power negative electrode;<br> Yellow: output power<br> Brown: Positive electrode of the lamp<br> White: negative electrode of the lamp,<br> Blue: indicator signal<br> Green : signal reception