Features1KIT CONTAINS: The bike lithium modified controller kit contains several components such as 17A 3 mode controller, S830 panel, thumb throttle, power assist and brake shifter, which can satisfy all kinds of DIY modified bike needs at one time. 2MATERIAL: The controller case is made of metal with groove design, which can protect the internal circuitry due to good heat dissipation, thus avoiding thermal overload. The panel is made of ABS material, which is lightweight, strong and durable, with fine workmanship, good toughness and waterproof performance, providing better protection for the internal circuitry and making it more durable. 3MULTIFUNCTIONAL PANEL: The panel is multifunctional and can display useful data on your bike, such as on off buttons, light switches, battery level and so on. With one display, you can know the riding condition. 4MULTIPURPOSE ADAPTATION: The 17A 3 mode controller kit is suitable for 250W350W motors, suitable for DIY electric bikes, electric scooters, electric scooters, folding scooters and so on. Easy to maintain and install, the modification greatly improves the riding fun, suitable for cyclists who like challenges. 53 MODES: Mode 1 sine wave, mode 2 hall mode, mode 3 no hall mode; When the motor hall is normal, sine wave work; when the hall is damaged, switch to no hall square wave mode work.SpecificationItem Type: Bicycle Lithium Battery Modified KitMaterial: ABS, Rubber, Aluminum, MetalWeight: Approx. 912g / 32.2ozApplicable: For 250W-350W Motor Controller Size: Approx. 95x50x30mm / 3.7x2.0x1.2inCurrent: 171AController Speed Setting: 1.1-4.2VBraking: Input Low LevelPackage List1 x Panel1 x Controller2 xBrakeShifter1 xThumbThrottle1x PowerAssist Cable1xPower Assist Magnet2 x Instruction Manual