Mobile lift up and down with cases without motor acts as a generator like the birds we can convert DC into AC electricity pay back into the electrical system of the building.
Mikkeli before the lift up and down without using the motor acts as a generator, we are able to convert DC power to AC power supply back into the building.
The lift K ลี่อ at up and down without using motor would act as a generator we can bring the electrical system แสตร down converted to alternating current pay back into the electrical system of building