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enter image description here

Does anyone know what this component is?

Thanks

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    \$\begingroup\$ In general it is much easier to identify a component knowing the purpose of the circuit around. \$\endgroup\$ – Ariser Feb 20 '20 at 8:15
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It looks like a Light Dependent Resistor

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It is indeed an ldr, short for Light Dependent Resistor. Its resistance decreases when subjected to light and the resistance increases if the strength of the light is decreasing. Its resistance solely depends on the intensity of light.

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