automatic street light using two transistor

automatic street is a very interesting circuit and using it we can make the light lamp on at night time and off at day time. this circuit is very simple to understand and make. components required -> two bc547 transistors --> resistors of value 2.2kohm and 330ohm both two --> light dependent resistors ->>>light emitting diode -->> 9v battery circuit diagram in night time, the value of light dependent resistor is very high and it makes the first transistor off so the second transistor will get base current and and it will be on so the led glows at this time. in day time, the resistance value of light dependent resistor is very low so it makes the first transistor on and the current flows through the first transistor therefore the second transistor will not get the base current so it will be off.. therefore at day time light will be off. still you have any confusion making this circuit on breadboard and matrix board, you can comment here/.......... thanks