Features:This display adopts good quality materials, lightweight, rainproof, sturdy and durable.LCD display can clearly show the state and data, backlight enables you to see scree clearly in dim environment, buttons for quick operation, easy to use. The controller is brushless type, working silently and sensitive to the state of electric bike. Easy to install and use, comes with mount for LCD display and suitable for 22.5mm handlebar. Can set the power‑on password, control the lights, cruise and boost. The vehicle speed is divided into gears, the number of gear positions is 3/5/9 gears optional, and turn the handle can be selected to be divided into gears or not.Suitable for electric bicycles, scooters. Specification:Material: Plastic + LCD + Metal Color: Shown as picture Options: 1#24V-36V; 2#36V-48V Power: 250W/350W Low-voltage Protection: 1#24V-36V: 19V/30V; 2#36V-48V: 30V-41V Waterproof: Rainproof Controller Size: Approx. 8.8 x 5.2 x 3cm / 3.46 x 2.04 x 1.18inch Display Size: Approx. 8 x 5cm / 3.15 x 1.97inchWeight: Approx. 332g Package List:1 x LCD Display 1 x Controller Note: Each cable is labeled with color for different uses.Red: power positive electrodeBlack: power negative electrode Yellow: power output Brown: lamp positive electrodeWhite: lamp negative electrode Blue: indicator signal Green: signal receive Note:1. The product power factory setting is 8, the basic general market most of the split booster, if the customer uses an integrated booster, set it to 12.2. P13 on the manual is to set the product power, in the case of incompatible booster, the customer needs to adjust to 8 or 123. Please note that the controller model will be sent randomly, and make sure you will not mind before ordering. .