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photocell

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
photocell 
Physical receptor that produces electric current when light is incident upon it. Syn. photoelectric cell.
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Photocell panels on the roof detect levels of natural light and automatically dim the lights inside to compensate, thereby using the minimum energy possible and sensors inside detect movement so that lights only go on when someone is present.
Less energy for a sweet Christmas by Birmingham Mail (England)
Hinkley Lighting also equips many of these fixtures with a photocell which detects daylight and prevents the fixture from illuminating during such daylight hours.
Hinkley Eco-Friendly Indoor Lighting by Eric Marty / Home based business community
An integrated photocell activates light emitting diodes (LEDs) for even illumination up to 50 metres and for switching of the IR filter.
Vista releases bullet-proof 24-hour camera by TradeArabia (Manama, Bahrain)
 
 
 
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