I found that the gear reducer size 60:1 gear reducer that can be added to make the motor spin cycle size, maximum 5V which enables the creation of new small Dynamo power. ... A/min
The gear around a 60: 1 reduction gear is the spin cycle can be added to older motors which cause the most 5V power generation small power generator to create electricity ... A / min.
Found that the gear reducer round size 60: 1 is round can increase the rotation gear reducer motor provide 5V as possible, which makes the machine electricity power small dynamo generate electricity... A / min.