Feature:1. Adopts excellent singlechip as main control chip, control and protect motor and battery of electric bike, improved reliability and service life.2. Has undervoltage protection, overcurrent protection, stall protection and other protection functions, ensures the use and safety of electric bicycles.3. Suitable for electric bicycle, electric tricycle, electric scooter.4. Professional manufacturing, stable characteristics and high reliability.5. Made of high quality aluminum and plastic material, sturdy, durable and long service life.Spec:Condition: 100% Brand NewItem Type: Controller Throttle Grip KitMaterial: Aluminium + PlasticColor: As Pictures ShownRated Power: 250WRated Voltage：DC24VUndervoltage：20±0.5VShifter Handle：1 4VCurrent：21±1AWeight: Approx. 332gController Box Size: Approx. 7.3x6x3cm/2.87x2.36x1.18inchPackage List:1 x Controller 1 x Pair of Throttle Grip