Features1COMPLETE BIKE CONTROLLER KIT: Includes a 17A 3 modes bike speed controller and an S800 panel. for DIY bike retrofitting to meet all your needs. 2 DESIGN: Controller shell made of metal with groove design for heat dissipation, preventing overheating and protecting internal circuits. S800 panel made of ABS material for durability and waterproof protection. 3MULTI FUNCTION PANEL: Provides useful data on your bike such as on off buttons, light switches, battery level display, and more. Keeps you informed during your bike ride. 4UNIVERSAL FIT: Panel installation diameter of 22.2mm. Suitable for electric bikes, electric scooters, and other compatible vehicles. accessory for your riding journey. 5ENHANCES RIDING EXPERIENCE: 17A 3 mode controller kit suitable for 250W 350W motors. Great for DIY electric bikes, electric scooters, folding bikes, and more. Prolonged durability and improved riding pleasure.SpecificationItem Type: Electric bike conversion kitMaterial: ABS, rubber, Aluminium alloy, metalWeight: Approx. 390g / 13.8ozCompatible: For 250W to 350W motorController Size: 80x50x30mm / 3.1x2x1.2in Maximum Current: 171AController Voltage: DC 36V 48VController Speed: 1.1 to 4.2VBrake: Input low levelPackage List1 x Controller1 x Panel2 x Manual