pho
to
cell
Plural
photocells
1
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
- 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.
- Garden lights with photocell sensors offer energy-efficient illumination, responding to the changing light conditions.
- Photocells in camera systems adjust exposure settings to capture optimal images in different lighting scenarios.