How to make Emergency Light For Home and Office.

It's is a simple model of an emergency light .

It is easy to built and there is no such a problems get and more easy to detect the problem if occurs. 
In the first step observe  the circuit Diagram.

In the above Circuit there is a Transformer Which is connected through Source Power which is 110v to 220v ac .after the step down of  power which have a rating of 12v AC transform through Bridge Rectifier (Conversion of AC to DC) the led is connect Parallel for Indication Of supply. IN4007 diode to protect the Battery From Over Charge And stabilize the Battery Power.and the relay which make a mane role in this project. the relay works as a automatic switch which connect to the battery from source when the source power is on. in the same way it will connect the battery from load while the source power is OFF.

Required Components.

Transformer with out put 12v 

Capacitor 470uf to 1000uf

resistor 330ohm

Led 1 

Diode IN4007

Realy  12v 

Load Super Sharp SMT Leds.

Copper Clad Board. 

Download PCB Design