1. Slotted Box: The controller box is made of high-quality metal with a slotted design, which protects the internal circuits from thermal overload thanks to its good heat dissipation.,2. Easy Installation: The electric bicycle controller and meter are easy to install and suitable for electric bicycles, scooters, etc.,3. Parameter Display: Includes 5-cell energy indicator, automatic 24, 36, 48V voltage identification and speed indicator storage within 5 seconds of power-on, short press \"-\" or \"+\" to change speed, long press the \"-\" key to activate 6 km per hour boost mode when stationary, activate cruise control when moving, customize long press the \"+\" key to turn lights on or off, 10 minutes without action automatically enters power-saving sleep mode.,4. Aluminum Alloy and ABS: This electric bicycle controller kit is made of high-quality aluminum alloy and ABS material, so it is strong and durable.,5. With Display Bracket: The electric bicycle motor speed controller kit comes with a display bracket suitable for handlebars with a diameter of 22.5 mm.,Item Type: Electric Bicycle Controller Kit,Material: Aluminum Alloy and ABS,Gross Weight: 323g/11.4oz,Voltage: 24V 36V 48V,Power: 350W,Current Limit: 13A,Low Voltage: 19V 30V 42V,1 x Motor Speed Controller,1 x Meter,1 x Manual