Features1Delivery: The bicycle lithium battery modification controller large kit includes 35A for Anderson plug controller; S900 panel, thumb throttle; power sensor wiring; Boost sensor, booster pad, controller bag, power off brake handle, which are suitable for DIY modification and meet all needs. 2Grooved Metal Shell: The controller shell is made of metal with groove design. Due to its good heat dissipation function, it can protect the internal circuit to avoid thermal overload. 3ABS Panel: The display panel is made of ABS material, which is light, durable, fine and has good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable. 4Multiple Functions: When riding a bike, the product will display many useful data on your bike, such as switch buttons, light switches, battery power display and other functions. A display screen can let you keep track of the situation. 51500W Motor Applicable: 35A controller kit is applicable to 1500W motor; Main applications: DIY electric bicycle, electric scooter, folding bikes, etc; It is easy to maintain, greatly improves the fun of riding, and is suitable for cyclists who like challenges.SpecificationItem Type: Electric Bicycle Conversion KitMaterial: ABS, rubber, aluminum alloy, metalGross Weight: 1508g/53.2ozController Size: 185x80x45mm/7.3x3.1x1.8inCurrent: 35ARated Voltage of Controller: DC 36V 48VController Speed Setting: 1.1-4.2VApplicable Motor Power: 1500WPackage List1 x Controller1 x Controller Bag1 x Controller Instruction1 xS900Panel1 x Panel Instruction2xPowerOff Brake Handle1 x ThumbThrottle1xPowerAssistedMagneticDisc1xPowerAssisted Line