Introduction of hand generator

There is not much difference between a hand-driven generator and an ordinary generator, that is, the coil rotates in a magnetic field, but the power is manpower. The average power of a person is 0. 1 to 0.2 horsepower, which is about 73-150 watts, which cannot be maintained for a long time. Therefore, the power of the hand-cranked generator will not exceed100W.