Features1Product Design: The controller housing adopts a flute design; due to its heat dissipation function, it can keep internal circuits safe from thermal overload. 2Reliable Material: The panel is made of ABS material, which is light and strong; It has fine workmanship, toughness and waterproof performance, making the circuit more durable. 3Strong Securiy: The product has stable and reliable performance; It has many functions such as undervoltage, overcurrent, and stall prevention to ensure the safe use of electric bikes by users. 4Product Functions: When riding a bike, this product will display many useful data on your bike, such as on off buttons, light switches, battery power display, and other functions. 5Main Uses: It is used for DIY electric bikes. scooters, etc; Lithium battery modification of bikes greatly improves riding pleasure, and is suitable for cyclists who like challenges.SpecificationItem Type: Motor ControllerWeight: 522g/18.41ozProduct Material: Aluminum alloy, ABSMaximum Controller Current: 15 1AController Power: 250WProduct Application: suitable for 36V, 48V 250W motorsPackage List1 x Controller1 x Meter1 xThumb Throttle1 xPedal Asist Sensor2 x Instructions