Features1Controller: The controller is sine wave 3 mode controller matching with Hall and no Hall brushless motor. Suitable for 24V250W 24V350W 36V250W 36V350W 48V250W 48V350W with Hall and no Hall brushless motor. 2Shell: The controller shell is made of aluminum alloy with grooves, good heat dissipation can protect the wires from damage and avoid thermal overload. 3Safety Protection: It can withstand a maximum current of 17A for a short period of time. When the temperature is too high, the controller will cut off the current to protect the whole system. 4Prime Material: The controller is made of aluminum alloy material, durable and not easy to damage, bringing a good use experience. 5Main Uses: Modification of electric bicycles, electric scooters, electric folding bikes, etc.; easy to maintain, bicycle lithium conversion greatly improves the fun of riding, suitable for cyclists who like challenges.SpecificationItem Type: SineWave3ModeControllerWeight: 268g / 9.45ozMaterial: Aluminum alloyRated Voltage: 24V, 36V, 48V universalMaximum Current: 171APackage List1 x Controller1 x Instruction Manual