1Made of good materials with fine craftsman, which ensures good toughness and waterproof feature, which provides better protection for inner circuit and makes it more durable 2It allows you to easily have a look at the basic state of electric bike about speed, gear, power, mode, lamp, etc 3The display supports 3 levels of backlight, multiple settings such as auto or timer sleep mode, speed limit and more, very practical and easy to use 4Every cable has different color, easy to install the panel display to electric bike. 5Perfect accessory for electric bike, scooter, etc Features: Made of good materials with fine craftsman, which ensures good toughness and waterproof feature, which provides betterprotection for inner circuit and makes it more durable.It allows you to easily have a look at the basic state of electric bike about speed, gear, power, mode, lamp, etc.The display supports 3 levels of backlight, multiple settings such as auto or timer sleep mode, speed limit and more, very practical andeasy to use.Every cable has different color, easy to install the panel display to electric bike.Perfect accessory for electric bike, scooter, etc.Specification: Condition: 100% Brand New Material: Aluminum + Plastic Color: Black Controller Power: 250W/350W (universal for electric bikes with or without Hall sensor) Controller Size: Approx. 8.8 x 5.2 x 3cm / 3.46 x 2.05 x 1.18inch Weight: Approx. 374g Options(Power Supply Voltage): 24V; 36V; 48V; 60VDefinition of LCD line color:Red---positive pole of power supply;Yellow---switch output;Blue---signal reception;Green---signal transmission;Black---negative poleof power supply ;White---positive pole headlights. Packing List: 1 x Controller 1 x Display with Shifter Note:1. For Display: one cable plug is for lamp, the other for display2.The product can work without Hall sensor, but it will display the motor fault code E07 which cannot be eliminated.