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Photocell
01
a device that detects or measures light, commonly used to automatically control lighting or to trigger other electronic devices based on changes in ambient light levels
Example
Streetlights equipped with photocells illuminate automatically as daylight diminishes and turn off at dawn.
Outdoor security lights often incorporate photocells to provide enhanced visibility during low-light conditions.
Photocells in solar-powered devices help regulate charging and discharging cycles based on sunlight availability.
