Features1Bike Lithium Modified Controller Kit: Includes 17A three mode controller, S810 meter, FT 8C magnetic point, 109R throttle. Suitable for DIY modification to meet all needs. 2Controller: The controller enclosure is made of metal with a fluted design, which can protect the internal circuit due to its nice heat dissipation function, thus avoiding thermal overload. 3ABS Material Panel: The panel is made of ABS material, light, strong and durable, fine workmanship, with nice toughness and waterproof performance, providing better protection for the internal circuit, making it more durable. 4Panel Mounting Diameter: Panel mounting diameter 22.2mm, suitable for electric bicycles, electric scooters and other accessories. 5Main Uses: DIY electric bicycle, electric scooter, folding bike, etc. Easy to maintain, the bike lithium electric modification greatly improves the fun of riding, suitable for cyclists who like a challenge. The 17A three mode controller kit is suitable for 250W350W motors. 63 Modes: Mode 1 sine wave, mode 2 with Hall mode, mode 3 without hall mode; When the motor hall is normal, it works in sine wave mode, and when the Hall is damaged, it switches to no Hall square mode.SpecificationItem Type:ElectricBikeControllerKitWeight: 495g/17.5ozMaterial: ABS, rubber, aluminum alloy, metalApplication: Suitable for 250W-350W motorController Size: 80 x 50 x 30mm/3.15 x 1.97 x 1.18inMax Current: 171AController Voltage: DC 36V 48VController Speed Setting: 1.1-4.2VBrake: Input low levelPackage List1 x Controller1 x Panel1 xPower AssistMagnetic Disk1 x Power Assist Cable1 x Thumb Throttle2 x Instructions