Introduction 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.
1 Quantity = 5 pcs
Transistor is one of the popular semiconductor device
When it comes to 2n222 then it is considered a very common transistor
2N2222 is a common npn bipolar junctiontransistor (bjt)