A photocell changes (also called a LDR, photodetector, photoresistor, CDS or photoconductive cell) resistance depending on the amount of light it is exposed to.
These photocells can be used in many applications:
- Auto-focus lenses
- Exposure meters
- Contrast controls for TVs
- Dimmer or light switches
- Flame detectors
- Electronic toys
- Street lamp switches
- Optocouplers
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|  Order# |  Light  |  Dark |  Size of photocell  |
| Â Photo-300 Â Â | Â 5K | Â 200K | Â 5mm |
| Â Photo-310 | Â 8K | Â 1Meg | Â 5mm |
|  Photo-320 |  45K |  10Meg  |  5mm |
| Â Photo-330 | Â 16K | Â 5Meg | Â 5mm |
| Â Photo-340 | Â 50K | Â 20Meg | Â 5mm |
| Â Photo-600 | Â 8K | Â 300K | Â 10mm |
| Â Photo-610 | Â 12K | Â 1Meg | Â 10mm |
Note: Size of photocell may change by manufacture.
WARNING
