22A controller. Controller kit for 500W motors. And suitable for DIY electric bicycles, electric cars, electric scooters, folding cars, etc. The bicycle lithium battery conversion kit greatly enhances the driving pleasure and is suitable for bicycle enthusiasts. Packing list: Bicycle lithium battery modification kit including 22A controller, S830 meter, 109R thumb throttle, KT-8C boost sensor + a pair of power-off brake levers Great features: While driving, the product displays a lot of useful data about the bike, such as the on/off button, light switch, battery level indicator and other features. The instrument has a display. Excellent performance: The S830 meter is made of high-quality ABS material, which is light, strong, well-crafted, tough, and waterproof, providing excellent protection for the internal circuit. Good heat dissipation: the controller shell is made of high-quality aluminum alloy, with a concave design, and good heat dissipation protects the internal circuit from the influence of heat load. Colour:As Shown Material:Metal+plastic Package Contents: 1 * controller 1 * Meter 1 * finger handle 1 * Boost sensor 1 pair * power off brake lever Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.