Wenzhou city sixty volt lithium ternary battery with what motor controller is the best thank you!

Wenzhou City, 60V battery with more than 450 controller with 450W or 500W motor is best. Controller to match the motor power, the greater the power of the motor, the greater the horsepower, the more powerful the start, the higher the speed, but the power consumption doubled, the motor power is small, the horsepower is small, but save electricity, run far. Electric motors convert electrical energy into mechanical energy, mainly including an electromagnet winding used to generate a magnetic field or distributed stator winding and a rotating armature or rotor. Under the action of the stator winding rotating magnetic field, its armature squirrel cage aluminum frame in the current through and by the action of the magnetic field and make it rotate.