Photocell
Our Products
Download & View Ecatalogue
Enquiry Now
Photocell
At Linear Systems, we design and manufacture high-quality Photocells that deliver precise light detection and dependable performance across a wide range of industrial and commercial applications. Also known as Light Dependent Resistors (LDRs) or photoresistors, our Photocell sensors are engineered to detect the presence and intensity of light with exceptional accuracy and fast response.
Each Photocell operates by varying its electrical resistance according to the intensity of incident light — the resistance decreases as the light increases and rises as the light level drops. This simple yet powerful principle makes our Photocells ideal for automation and energy-efficient lighting control systems.
Working Principle
A Photocell functions by converting changes in light intensity into electrical signals.
When light falls on the cell, its resistance changes, which can be measured and used to trigger or control electronic systems such as automatic lights, alarms, or sensors.
This reliable light-sensing mechanism allows for real-time detection, ensuring precision and stability in all operational environments.
Applications of Photocells
Our Photocells are used in a wide variety of applications, including:
- Automatic lighting systems — to switch lights on or off based on ambient light levels.
- Streetlights and outdoor lighting — to ensure energy-efficient operation from dusk to dawn.
- Security and alarm systems — to detect sudden changes in light intensity.
- Solar panels and energy systems — for light-based energy conversion and monitoring.
- Industrial automation — for flame detection, machine positioning, and process safety controls.
Key Features of Linear Systems Photocells
Our Photocell sensors are built to meet international quality standards and ensure long-lasting, accurate performance:
- High sensitivity for detecting even minimal light changes
- Fast response time for real-time automation
- Adjustable sensitivity by varying input voltage
- Available in multiple shapes and sizes for different applications
- Easy installation and operation — no external power source required
- Designed for stability and performance in both indoor and outdoor environments
Models
We offer a range of Photocell models designed to suit diverse industrial and commercial needs:
- Photocell (PC–1): Spectral range of 540–700 nm — suitable for visible light detection
- Photocell (PC–2): Spectral range of 350–950 nm — ideal for general-purpose sensing
- Photocell (PC–3): Spectral range of 350–1100 nm — optimized for broad-spectrum applications
Each model is precisely calibrated to deliver consistent and reliable readings, ensuring seamless integration into automation, safety, and lighting systems.
Why Choose Linear Systems
With nearly four decades of expertise in industrial sensing and control solutions, Linear Systems is among India’s most trusted Photocell manufacturers.
Our products are designed for:
- Long service life and consistent accuracy
- Compatibility with automation, flame detection, and lighting systems
- Custom configurations for OEMs and specialized applications
- Reliable operation under varying light and environmental conditions
Every Photocell is thoroughly tested for sensitivity, performance, and durability to ensure it meets global standards of precision and reliability.
Contact Us
Looking for dependable Photocells for your lighting or automation system?
Get in touch with Linear Systems, India’s trusted manufacturer of high-sensitivity Photocell sensors for industrial and commercial applications.
Our team will help you choose or customize the right model for your specific operational requirements.