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Light funnel is a new type of energy conservation and environmental protection
lamp, it used the people discard water bottle for waste recycle, it does not take any external power supply, just two bottles connected light funnel, among them a bottle filled with water, and then it will be a rotating, due to water drops forming the mechanical energy into electrical energy,let the LED lamp brightens ,
make people increase the consciousness of environmental protection.
Guangzhou College of South China
Guangzhou College of South China University of Technology