48V-72V Electric Bike Controller 3000W Sine Intelligent Motor Speed9775. Perfect replacement for the old or damaged one. Suitable for electric bicycle. Powerful start, climbing power large and small motor noise. New and high quality. Made of high quality material, and practical to use. Voltage: 48V/60V/72V Undervoltage: 42V/52V/62V Power: 3000W Color: As Shown Material: plastic+metal Package Contents: 1 x Electric Bike Controller.