Features1Bicycle Lithium Electric Modification Controller Small Kit: Including 35A positive basalt control controller, LED900S panel, turn handle, power magnetic point, motor conversion line. Suitable for DIY modification, to meet all needs. 2Controller Housing: Made of metal with a notched design, the internal circuit is protected from thermal overload due to heat dissipation. The instrument is made of ABS material, which is light, strong and durable, fine workmanship, with toughness and waterproof performance, providing better protection for the internal circuit, making it more durable. 3Panel Built in Intelligent Chip: Integrated gear switching, real time cycling data at a glance, intimate backlight design, day and night can be seen clearly, making travel more convenient, high definition LED display panel, accurate power display speed and cycling mileage. 4The Panel Has a Variety of Functions: When riding a bike, the product 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. 5 accessories: Panel mounting diameter 22.2mm, suitable for electric bicycles, electric scooters and other accessories. 6DIY Electric Bicycle: Suitable for 1500W motor; Mainly used for DIY electric bicycle, electric bike, electric scooter, folding car, etc.; Easy to maintain, the bike lithium electric modification greatly improves the fun of riding, suitable for cyclists who like a challenge.SpecificationItem Type:Electric Bike RetrofitKitWeight: 1093g/38.6ozMaterial: ABS, rubber, aluminum alloy, metalApplication: Applicable to 1500w motor matching communication protocol for KT products (commonly known as the No.1 communication protocol)Controller Size: 170 x 80 x 40mm/6.7 x 3.1 x 1.6inMaximum Current: 352ARated Current of Controller: 17ASpeed Setting of Controller: 1-4.2VPackage List1 x Controller1 x Panel2 x Rotating Handle1 x Power Magnetic Plate1 x Power Cable2 x Instruction