Features： 1、Good Heat Dissipation: The controller shell is made of high quality metal with groove design. Due to its good heat dissipation function, it can protect the internal circuit and avoid thermal overload. 2、Easy Installation: The brushless motor controller of the electric bicycle is easy to install and use, and the LCD display screen speed regulating handle is suitable for 22.5mm handlebars. 3、Sensitive Control: The brushless motor controller can provide stable speed and sensitive control of braking and direction change, with high sensitivity. 4、LCD Display Screen: The LCD screen can clearly display the status and data. The backlight allows you to clearly see the screen in a dark environment. The buttons are operated quickly and easy to use. 5、3 Mode Work: When the motor Hall is normal, it operates in sine wave mode automatically. When the motor Hall is damaged, it will automatically recognize and repair one time. When Hall is damaged, it will switch to work without Hall mode. When the motor Hall is in normal state, after identifying the phase sequence, the memory will not be wrong when it is damaged. Specification： Item Type: Electric Bicycle Brushless Controller Kit Material: Aluminium Alloy Weight: Approx. 849g / 29.9oz Power: 500W Current Limit: 28A Package List： 1 x Controller  2 x Grip 1 x Instrument 1 x Instruction