Light Sensitive Switch Single Transistor Based
Light Sensitive Switch is a simple project which operates a relay when light falls on the LDR.
Input : 12 V @ 55 mA
Relay output : NC-C-NO
Onboard preset to set the level
Power-On LED indicator
Relay On LED indicator
Power Battery Terminal (PBT) for easy relay output connection
Four mounting holes of 3.2 mm each
PCB dimensions 44 mm x 49 mm

Light Sensitive Switch Schematic

Light Sensitive Switch PCB and Parts List