How to Make Automatic Light on/off System

In this, we have used the components given below, if you want to buy these components, then there is a link with the name of the components, you can buy from that link -

• LED Light - https://amzn.to/3jtozW1

• 12v Relay - https://amzn.to/3mQHoVa

• 9v Battery - https://amzn.to/3zsBCfU

• Switch - https://amzn.to/3ksv0bc

• 100k Resistor - https://amzn.to/3gSssSH

• LDR - https://amzn.to/3mGnrQR

• BC547 Transistor - https://amzn.to/3gH60vM

Circuit Diagram -