Features1Delivery: The bicycle lithium battery retrofit controller kit includes a 26A the 3 mode controller; S866 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: 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 uses 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: S866 panel has multiple 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. 5Application: 26A controller kit is applicable to 500W to 750W motor; Main applications: DIY electric bicycle, electric scooter, folding bikes, etc; It is easy to maintain. The lithium battery modification kit of bicycles greatly improves the fun of riding, and is suitable for cyclists who like challenges.SpecificationItem Type: ElectricBicycleConversionKitMaterial: ABS, rubber, aluminum alloy, metalGross Weight: 1106g/39.0ozController Size: 120x60x35mm/4.7x2.4x1.4inCurrent: 261ARated Voltage of Controller:DC24V 36V 48VController Speed Setting: 1.1-4.2VApplicableMotorPower: 500W-750WPackage List1 x Controller1 x Controller Bag1 x Controller Instruction1 xS866Panel1 x Panel Instruction2xPowerOff Brake Handle1 x ThumbThrottle1xPowerAssistedMagneticDisc1xPowerAssisted Line