Small LEDs lit by water droplets

Engineers at the University of Hong Kong have developed an electric generator based on water droplets, the structure of which is similar to that of a field effect transistor (FET) that converts the energy obtained more efficiently into other energy.  And in the form of waves. Experts have dubbed it "dropped based electric generator".  Contrary to traditional principles, the FET method is very efficient.

 Thus, the kinetic energy of water increases the energy density to 50.1 watts per square meter, which is the highest ever in systems. It took two years to make and the first model is working very well.  The system can also generate electricity from falling water droplets.  If water continues to fall, the generator generates electricity. According to experts, if 100 micro liters of water is thrown from a height of 15 cm, it can generate 140 volts of electricity, which is enough to illuminate 100 LEDs.  In the next phase, experts will see if this method can be used to generate electricity for large projects.