Features1Versatile DIY Modification: This electric bike modification kit, including a 17A three mode controller and a S866 display panel, is for DIY enthusiasts looking to convert their bikes, electric scooters, or folding bikes into electric powered vehicles. 2Easy Installation: The display is designed with a 22.2mm/0.9in mounting caliber and the controller is compatible with 250W to 350W motors, making installation quick and convenient for users. 3 Materials: The controller features a metal housing with grooved design, which provides heat dissipation to protect internal circuits from overheating. The display is made of durable ABS material, ensuring lightweight durability. It offers great toughness and waterproof performance, providing better protection for internal circuits. 4Multifunctional Display: The display offers various functions, presenting useful data such as power on and off buttons, light switches, battery level indicators, and more while riding the bike. With a single screen, you can easily monitor your riding conditions at all times. 5Enhanced Riding Experience: By transforming your bike into an electric powered bike, this kit allows you to enjoy the thrill of electric riding while maintaining control over your chosen vehicle. It offers convenience, efficiency, and a boost to your cycling adventures.SpecificationItem Type: Electric Controller Display KitMaterial: ABS, rubber, aluminum alloy, metalWeight: Approx. 389gg/13.7ozApplication: Suitable for 250W to 350W motorController Size: Approx. 80x50x30mm/3.1x2.0x1.2inMaximum Current: 171AController Speed Setting: 1.1 to 4.2VBrake: Input low levelPackage List1 xMotor Controller1 xDisplay Panel2 x Specification