1Important Parameters: Rated voltage is DC36V, rated power is 800W, the climbing power is stronger, the operation sound is small, eliminate tire noise. 2Function: The motor speed controller will help starting more smoothly, ensure more comfortable and smooth riding, better ensure your driving safety. 3Premium Material: Made of aluminium alloy with groove design, which can protect the inner circuit and good for heat dissipation to avoid thermal overloading. 4Fine Workmanship: Professional manufactured, exquisite workmanship with unique design, ensure stable performance and high reliability. 5Application: Suitable for wind turbine scooters, mechanical equipment, mini electric motorcycle Diy engine kits, go karts, electric bicycles, bicycle parts, even lawn mowers.