Features： 1、Notched Design: The controller shell is made of metal with a notched design, which protects the internal circuitry due to great heat dissipation, thus avoiding thermal overload. 2、Waterproof Display Panel: The display cover is made of ABS material, light and strong, with great toughness and waterproof performance, to provide better protection for the internal circuit, so that it is more durable. 3、Great Performance: The controller has stable and reliable performance, with undervoltage protection, overcurrent protection, stall protection and other protection functions, to ensure the use and safety of electric bikes. 4、Main Uses: DIY electric bike, electric scooter, folding bike, etc. Easy to maintain, the bike conversion kit greatly improves the fun of riding, suitable for cyclists who like a challenge. 5、Multiple Display Functions: When riding a bike, the panel will display a lot of useful data on your bike, such as the switch button, light switch, battery level display and other functions, a display screen can keep you in touch with the situation. Suitable for 22.2mm handlebars and is easy to install and use. Specification： Item Type: Electric Bike Conversion Set Material: Aluminum alloy, ABS Weight: Approx. 657g/23.2oz Current Limit: 23A Controller Power: 450W Display Mounting Handlebar: 22.2mm diameter handlebars Display Function Description: Speed display, power gear display, power indicator, fault prompt, total mileage, single mileage, headlight display Package List： 1 x Controller 1 x Display 1 x Specification