The D57 5MM LDR Metal Casing for Light Control Lamp light-dependent resistor is made of semiconductor material. It also names LDR, photoconductor. The electric conductivity changs by the illuminance. The illuminance is stronger, the value of the resistance will be weaker. With this charter, we can produce different sizes to satisfying different requirements.
1 x D57 5MM LDR Metal Casing for Light Control Lamp