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t changed by the existing crutches which is unconvenient for the old to use at night. And we add an LED indicator and a flashlight on it so that it will be more convenient for the old to walk outside at night.
The bottom of the power generation device:
The energy collected by the old in the use of crutches everyday, spring inside, the energy collected when the old walking everyday .
The old acting slowly when crossing the street at night, if we open the LED indicator ,we will see the constantly flashing of the LED indicator could provide an signal to the vehicle to ensure the safety of the old .
from Wuxi City
Departement of Industrial Design