This G1/2 micro hydro generator provides you clean and renewable electricity. With the help of the regulator circuit inside, the output of this generator is stable at 3.6V. And the capacity of battery is improved from 300mAh to 700mAh compared to the old version.Time to replace the Li-po batteries in your waterside projects with the green and more accessible hydro power.FEATURESBuilt-in Lithium"/> BEL electronic - 3.6V Micro hydro generator