Photocell Switch

ALION Photocell Switches can automatically sense natural light. So, this type of switch is convenient for energy saving in outdoor settings.

ALION Photocell Switches are practical when paired with outdoor lighting fixtures. This photocell switch will work in residential, commercial, and industrial settings. Since it can sense daylight, photocell switches can trigger lights to turn on when the sun goes down and vice versa. In other words, they control the load circuit based on the intensity of natural light. As a result, your home or business will be more energy-efficient. Mainly, that’s because you’ll be limiting power usage to only some parts of the day.

ASO Series Photocell Switch

ASO photocell switch consists of a sealed CDS photocell and a Snap action bimetallic relay....

AS Series Photocell Switch

AS photocell switch consists of a sealed CDS photocell and a Snap action bimetallic relay....

ASO Series Photocell Switch

ASO photocell switch consists of a sealed CDS photocell and a Snap action bimetallic relay....

AS Series Photocell Switch

AS photocell switch consists of a sealed CDS photocell and a Snap action bimetallic relay....

What Is a Photocell Switch?

A photocell switch is a device that detects light. In the presence of light, the device will automatically turn your lights on or off. Most often, people set up the lights, so they turn off at sunrise and turn on at dusk. Photocell switches are durable, easy to use and set up, and affordable.

Even though there are different types of photocell switches, they all use the same technology and semiconductors to control the current. Because they detect ambient light levels, they can automatically adjust to seasonal changes. Also, photocell switches are unaffected by daylight savings.

Now, a photocell switch is typically constructed with high-resistance semiconductors. When it is dark out, the resistance is high enough to prevent electricity flow. But during the day, the resistance drops and the electricity can flow once again.

Types of Photocell Switches

There’s a wide variety of different photocell switches on the market right now. But the three most popular types are:

  • – Plug-in photocell
  • – Photocell with a lamp or candelabra base
  • – Wired photocell with a line-voltage

A plug-in photocell works with a standard wall outlet. It’s easy to set up, and you can use it to control a single table or floor lamp. On the other hand, a photocell switch with a base is screwed into a light bulb socket. The switch will turn any lamp into an automatic lighting system. And last but not least, a wired photocell will control an entire electric circuit. A wired photocell could be a great choice if you work in landscape lighting or if you need it for security reasons.

Applications of Photocell Switches

There are many ways you could use a photocell switch. You could use it to control all of your outdoor lights or as a part of your home security system. But you can also install a photocell switch inside your home and save on your electric bill by having the lights on only when you need them.

Of course, a photocell switch isn’t just for residential use. You can get it for your office, building, or store and combine different types to get the lighting settings that are perfect for you.