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This is a walking stick which can produce energy. The LED on the top will turn on when the flow pushes the leaves at the bottom. It helps people who travel outdoors to see the surroundings at night. The leaves can be closed up when people are walking during the day.
Thanks to Mother Nature giving us the energy.
USST
I.D.
Shanghai, China
Jidong Yang
Ma, Mingmin
Shanghai, China
Yetao Tao