Automatic light on&off..

Automatic light on & off. 

Automatic light on off circuit is very simple circuit which perform the on & off the light according to photo diode or LDR (light depending diode) output,

How does circuit make. 



Components required. 

List of components 

1.zero pcb board.
    https://amzn.to/32HVETc

2.LED lights.
    https://amzn.to/2ofGHJk

3.bc 548 
    https://amzn.to/2W6g2Lq

4. 100k pot(potentiometer).
     https://amzn.to/2BAONz0

5. LDR
      https://amzn.to/2MGZeHV

6.  9v battery
      https://amzn.to/2pNqco0

      


Circuit diagram.. 



How doe,s the sensitivity of circuit is adjust. 

 The sensitivity of circuit is simply adjust by turning the nod of potentiometer(by adjusing the resistance of circuit). 



       Requiredmantes. of this circuit. 

In case of stratelight on national hiway ther is no person was present to turn on & off the light. 

So in that situations this circuit was use.. 

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