Features1Complete Accessories: Kit includes for JN controller, S990 display panel, power sensor wiring; power sensor power plate. Suit variety, suitable for their own DIY refit, to meet all needs 2Heat Dissipation Function: The controller enclosure is made of metal with a groove design, which protects the internal circuit due to its heat dissipation function, thus avoiding thermal overload 3Waterproof: The display panel is made of ABS material, light and strong, sturdy, fine workmanship, with toughness and waterproof performance, to provide better protection for the internal circuit, so that it is more sturdy 4Multiple Functions: S900 display panel has multiple functions. When riding a bike, the product will display many useful data on your bike, such as switch buttons, light switch, battery level display and other functions, a display can keep you abreast of the situation 5Application: The kit is suitable for 250W 350W motor, main purpose is DIY electric bike, electric bike, electric scooter. Easy to maintain, the bike lithium electric modification greatly improves the fun of riding, suitable for cyclists who like a challengeSpecificationItem TypeMotor Controller SetMaterial: ABS, Rubber, Aluminum, MetalWeight: Approx. 982g / 34.6ozApplication: Applicable to 250w 350w Motor Matching Newsletter Protocol for JN Products (Common Number 2 Newsletter Protocol)Controller Size: Approx. 85x50x30mm / 3.3x2.0x1.2inController Current: 15AController Speed Setting: 1.1 to 4.2VBrake: Input Low LevelPackage List1 x Motor Controller1 x Display Panel2 x Brake Handle1 x Power Assist Sensor1 x Power Assist Sensor Magnetic Disk1 x Thumb Pick1 x Accessories2 x Instruction Manual