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Photoresistor

LDR Photoresistor
LDR Photoresistor

LDR (Light Dependent Resistor) or Photoresistor

The Light Dependent Resistor (LDR) or also popularly known as Photoresistor is just another special type of Resistor and hence has no polarity so they can be connected in any direction. They are breadboard friendly and can be easily used on a perf board also.