Flow is a natural phenomenon of nature, and it can also be said to be a natural resource. Hydropower is definitely the most environmentally friendly and economical power generation mode. The miniature hydroelectric generator below uses water flow to spin a turbine to generate electricity. Tie it to one end of the rope and place it in the water, and it only takes 2-3 hours to fully charge the 1.25AH battery. This thing is very suitable for outdoor adventures, and the most important thing is that it is lightweight.
