Features1Applicable: 17A controller small kit for 350W motor, the main use: DIY electric bike, electric scooter, folding bike, etc., easy to maintain, bike lithium conversion greatly improves the fun of riding, suitable for cyclists who like challenges. 2Complete Kit: Bike lithium conversion controller small kit contains the 17A 3 modes controller, S866 panel, thumb throttle, power assist sensor wiring, power assist sensor sheet, suitable for their own DIY modification, to meet all needs. 3Good Heat Dissipation: The controller housing is made of metal with a notch design, which preserves the internal circuitry from thermal overload due to good heat dissipation. 4S866 Panel Display: While riding your bike, it will display many useful data on your bike, such as on off buttons, light switches, battery level display and other functions, a display that allows you to keep track of the situation. 5Good Toughness: The panel is made of ABS material, which is lightweight, sturdy and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuit and making it more durable.SpecificationItem Type: Electric Bike Panel Controller KitMaterial: ABS, Rubber, Aluminum Alloy, MetalGross Weight: 834g / 29.4ozController Size: Approx.95 x 50 x 30mm / 3.7 x 2.0 x 1.2inCurrent: 171AController Speed Setting: 1.1-4.2VApplicable Motor Power: 350WInstrument Interface: sm interfacePackage List1 x S866 Meter1 x Controller2 x Brake Handle1 x 10b Power Assist Sensor Wiring1 x 10b Power Assist Sensor Sheet1 x Thumb Throttle2 x Instruction Manual