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Its a cheap innovative torch for emergemcy and special group such as the vagrant, consuming energy from biological electrolyte "battery" made of (falling) leaves, or household garbage containing acid ingredient.
User just needs to buy the Torch Head and current pole set for changing new "battery". Picking some falling leaves and pinching them out, squeezing them into an old beverage bottle with general water, and shaking it, at last when you install the Leaf Torch and rotate it to the end,it's lightened.
lts a cheap innovative torch for emergemcy and special group .
Xiaolin Guo, Yu Zhang, Linkai Tao, Duyin Qin