Features： 1、Important Parameters: Rated voltage is DC48V, rated power is 1000W, with stronger climbing power, low operation sound, eliminate tire noise. 2、Material: Made of aluminium alloy with groove design, can protect the inner circuit and good for heat dissipation to avoid thermal overloading. 3、Function: The motor speed controller will help starting more smoothly, ensure more comfortable riding, better ensure your driving safety. 4、Accessories: In addition to the necessary speed controller, this product is also equipped with two turning handles, make your installation easier. 5、Application: Suitable for wind turbine scooters, small dolphin electric vehicles, mechanical equipment, electric motorcycle DIY engine kits, electric bikes, go karts, and other machines. Specification： Item Type: Brush Motor Speed Controller Material: Aluminum alloy, rubber Mounting Hole Size: M5 Rated Voltage: DC48V Power Rating: 1000W Handle: 1-4V Line: 10 groups (battery, motor, electric door lock, indicator light, brake, speed control handle, brake light, charging port, brake, acceleration function) Application: Suitable for wind turbine scooters, small dolphin electric vehicles, mechanical equipment, electric motorcycle DIY engine kits, electric bikes, go karts Package List： 1 x Brush Motor Speed Controller 1 x Turn Handle (2 Pcs)