Features1Applicable Motor: 36V 48V DC motor speed controller is suitable for 250W to 350W motor. 2Heat Dissipation: The 36V 48V 17A controller shell is made of aluminum alloy with grooves. Good heat dissipation performance can protect wires from damage and avoid thermal overload. 3Safe Cutoff: The controller can withstand a maximum current of 26A in a short period of time. When the temperature is too high, the controller will cut off the current to protect the safety of the entire system. 4Electric Scooter: 3 mode sine wave electric bicycle brushless motor controller can also be used as electric scooter accessories. 5 Performance: The controller is finely crafted, with a compact appearance and stable performance, ensuring durability.SpecificationItem Type: 36V48VControllerMaterial: Aluminum Alloy, Rubber, ABSWeight: Approx. 243g / 8.6ozMaximum Current: 17 1AController Voltage: DC 36V, 48VController Speed Setting: 1.1-4.2VBraking: Input Low LevelController Size: Approx. 80 x 50 x 30mm / 3.1 x 2.0 x 1.2inApplicable Motor: Suitable For 250W To 350W MotorsPackage List1 x Controller