Simple Emergency lamb using LED

If you are interested in making an emergency lamb of your own then you can follow these instructions.
First of all you will need these things
1.Soldering iron
2.Solder
3.Dot Board
4.Led (10- 20no:s)
5.Resistor(220ohm, 1 for each led)
6.Plastic Box
7.6v Rechargeable Battery
8.Switch
9.An adapter for charging Battery

CIRCUIT DIAGRAM 

 

 

 Make connections as shown in the figure.

Place the dot board on the flat surface of the plastic box and insert the battery into the box.

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The switch can be left free or it can be attached to the box. Charge the battery according to the use. Normally it needs 2 hrs to charge completely. U can use this emergency up to 24hrs continuously