Features1DIY: Bicycle lithium modification controller small kit contains 17A controller and GD01 display panel. Suitable for DIY modification, meet all needs. 2MATERIAL: The controller case is made of metal with groove design, which protects the internal circuitry due to good heat dissipation, thus avoiding thermal overload. The display 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 DISPLAY PANEL: While riding a bike, this product will display many useful data on your bike, such as on off buttons, light switches, battery level display, and other functions, a display can keep you in control at all times! 4WIDELY APPLICABLE: The display panel mounting caliber is 22.2mm, which is suitable for most electric bikes and electric scooters, so you can rest assured to buy it. 5CONTROLLER KIT: For 250W350W motor and suitable for DIY electric bike, electric motorcycle, electric scooter, folding bike, etc., easy to maintain, lithium bicycle conversion greatly improves the riding fun, suitable for cyclists who like challenges.SpecificationItem Type: Display Panel Motor Controller KitMaterial: ABS, Rubber, Aluminum, MetalWeight: Approx. 385g / 13.6ozApplicable: For 250W-350W Motor Controller Size: Approx. 80x50x30mm / 3.1x2.0x1.2inMaximum Current: 171AController Voltage: DC36V 48VController Speed Setting: 1.1-4.2VBrake: Input Low LevelPackage List1 x Controller1 x Display Panel2 x Instruction Manuals