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A photoresistor or light-dependent resistor (LDR) or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words, it exhibits photoconductivity. A photoresistor can be applied in light-sensitive detector circuits, and light- and dark-activated switching circuits
A photoresistor or light-dependent resistor (LDR) or photocell is a light-controlled variable resistor.
The resistance of a photoresistor decreases with increasing incident light intensity
In other words, it exhibits photoconductivity.
5mm Light-Dependent Resistor Sensor