items needed is:-
a cr2025 or similar button cell
and an led
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Step 1: How to Connect?
well in any case its simple and very easy step...just connect the longer terminal to positive side of cell and negative terminal to other side....simple
Step 2: Thats IT.....
well all u need is some patience and some adjustment in attaching led with cell and eventually u will make it.....yepee...
Step 3: What Else Can U Do....
well u can use this as a handy torch or u can make bulb glowee....that will be in my other tutorial...thanks for watching.