Dark Sensitive Power Switch Circuit Diagram Using LDR

Description

Circuit showing a Dark Sensitive Power Switch .Here we have used a ldr and a ordinary transistor for making this circuit
.Connect any 230 volt equipment at the load .You need a 9 volt power supply
Components Required

         Resistor

                     10 k , 680 R

          Transistor

                        BC 548

          Diode

                   IN 4007

         Relay

         LDR