Features1Notched Design: The controller shell is made of metal with a notched design, which protects the internal circuitry due to great heat dissipation, thus avoiding thermal overload. 2Waterproof Display Panel: The display cover is made of ABS material, light and strong, with great toughness and waterproof performance, to provide better protection for the internal circuit, so that it is more durable. 3Main Uses: 15A controller kit is suitable for 250W and 350W motor, for DIY electric bike, electric scooter, folding bike, etc. Easy to maintain, the bike conversion kit greatly improves the fun of riding, suitable for cyclists who like a challenge. 4Multiple Display Functions: When riding a bike, the panel will display a lot of useful data on your bike, such as the switch button, light switch, battery level display and other functions, a display screen can keep you in touch with the situation. 5For DIY: This conversion set includes 1 controller, 1 display panel, 2 brake handles, 1 booster, 1 power assisted magnetic disc, 1 thumb pick, 1 accessory and 2 specifications to meet your different needs.SpecificationItem Type: Electric Bike Controller KitMaterial: ABS, rubber, aluminum alloy, metalWeight: Approx. 835g/29.5ozApplication: Applicable to the 250W 350W motor matching communication protocol for JN products (communication protocol No.2)Controller Size: Approx. 85x50x30mm/3.3x2.0x1.2inController Current: 15AController Voltage: DC 36V 48VController Speed Setting: 1.1 to 4.2VBrake: Input low levelPackage List1 xController1 xDisplay Panel2 xBrake Handle1 xBooster1 xPowerAssistedMagneticDisc1 xThumb Pick1 x Accessory2 x Specification