It is a variable resistor whose resistance changes depending on an external factor (light in this case). However, you will require several units to control each lamp individually.Ī photocell sensor is also known as a photoresistor. Candelabra/lamp-base photocells: These devices screw into light bulb sockets to turn almost any light fixture into an automatic lighting system. Wired, line-voltage photocells: These dusk-to-dawn sensors control entire electrical circuits, making them ideal for managing outdoor lighting (landscape, security, etc.).They offer a convenient way to turn floor and single table lamps on or off. Plug-in photocells: Work with standard AC wall outlets to control a pass-through plug.Instead, it senses natural sunlight to control the switching for the artificial light fixture.Ī photocell. However, it doesn't do these actions using a pre-set time. The electrical device functions like a timer because it switches light fixtures on or off automatically. Let's get right into it! What Is a Photocell Sensor?Ī photocell sensor is a photodetector that can sense light. But how do they work? We will look at these dusk-to-dawn sensors to explain their operating principle and how to install them. Photocell sensor is some of the vital devices required for enhancing this efficiency because they create automatic light fixtures that turn on at dusk and off at dawn. Although LEDs have provided energy-efficient light sources, there is still the need to increase energy savings to conserve the planet and reduce energy bills.
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