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Light Dependent Resistors by NTE Electronics

Photoconductive cells are sensors that allow you to detect light. They are small, inexpensive, low−power, easy to use, and don’t wear out. NTEs light−dependent resistors (LDR) are photoresistors whose resistance decreases with increasing incident light intensity. In other words, when it is dark, they have a high electrical resistance and when it is light, their electrical resistance is low.

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