LDR Photoresistor


We have 199 units in our Sydney Warehouse available for immediate dispatch.

We can get a further 1000 units in Australia from Little Bird. If you order today, we can dispatch this stock between Aug 24, 2019 - Sep 02, 2019.

This Light Dependant Resistor (LDR) can be used to easily measure ambient light with your Arduino or other board with analog input. You will need to set this up as a voltage divider with a resistor of around 10KΩ.



Maximum voltage: 150V, DC
Maximum wattage: 90mW
Operating temperature:  -30°C ~ 70°C
Spectral peak: 540nm
Bright resistance (10Lux) (KΩ): 5 - 10
Dark resistance: 0.5 MΩ
100λ10: 0.5
Response time: 20ms (Rise), 30ms (Down)
Resistance illumination: 2