Characteristics: This display adopts good quality materials, lightweight, rainproof, sturdy and durable. 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. The controller is brushless type, works quietly and is sensitive to the condition of the electric bike. Easy to install and use, comes with an LCD display holder and suitable for 22.5mm handlebar. 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. Suitable for electric bikes, scooters. 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: Each cable is color coded for different uses. Red: Power positive electrode Black : power negative electrode; Yellow: output power Brown: Positive electrode of the lamp White: negative electrode of the lamp, Blue: indicator signal Green : signal reception