1、Complete Conversion Kit: This li battery conversion kit includes a controller, SW900 display, throttle, and assistance sensor wiring, providing everything you need for an electric cycle upgrade. 2、Controller: Crafted from metal with a grooved design, the controller with excellent heat dissipation defends internal circuits from overheating, ensuring dependable performance during rides. 3、Multi Functional Display: Featuring the versatile SW900 display, check vital data during your ride, including power status, switch keys, and light controls, all at a sight for enhanced convenience. 4、Powerful Compatibility: This 15A controller kit is compatible with 250W and 350W motors, suitable for electric cycles, electric scooters, and folding cycles, offering flexibility for a variety of electric vehicles. 5、Enhanced Riding Experience: Easy to maintain and install, this li battery conversion kit significantly enhances your riding enjoyment, suitable for adventurous cyclists seeking new challenges on the road. Item Type: Electric Cycle Conversion Kit Material: ABS, Rubber, Aluminum Alloy, Metal Controller Voltage: 36 48V Controller Size: Approx. 83 x 52 x 30mm / 3.27 x 2.05 x 1.18in Controller Maximum Current: 15A Controller Rated Current: 7A Controller Speed Setting: 1-4.2V 1 x Controller 1 x Throttle 1 x Assist Sensor 1 x Controller Wiring Manual 1 x One to Two Connection Wire 1 x Panel 1 x Instrument Panel Manual