The difference between energy-saving motors and ordinary motors

I think the difference between the two is as follows:

1, energy efficiency: energy-saving motor energy efficiency up to 90% or more, far more than 85% of the ordinary motor.

2, materials: energy-saving motors use high-quality materials, ordinary motors do not use high-grade materials.

3, principle: energy-saving motors use advanced control technology, ordinary motors do not have these advanced technologies.

4, price: Although the initial cost of energy-saving motors is higher, but because of its high energy efficiency and low energy consumption, its operating costs will be lower than ordinary motors in the long run.