Home made 4v dc LED light 2016, Energy saving led light, LED light 8 ho...

There are many problem when load shading is running in your city. The electricity need for us every time. So, what do we should do. I thing the way of below is the better things for us. How to make a rechargeable light for use. At first we need a 4 volt battery,then we need a circuit you take form electrical shop. next step is below....