Product Description
The LDR 20MM Light Dependent Resistor is a photoresistive sensor designed to detect changes in light intensity by varying its electrical resistance according to ambient light levels. It is widely used in automatic lighting systems, light sensing circuits, street light controllers, alarms, educational projects, and electronic automation applications.
With its large 20mm photosensitive surface and reliable response characteristics, this LDR sensor provides stable light detection performance for both hobby and industrial electronic circuits.
Key Features
- Sensitive light detection based on ambient brightness
- Resistance changes according to light intensity
- Large 20mm photosensitive surface area
- Fast response to changing light conditions
- Low power consumption operation
- Simple integration into electronic circuits
- Suitable for automatic lighting and sensor applications
- Durable and compact component design
- Reliable performance for educational and DIY projects
- Ideal for automation and light control systems
Specifications
- Product Type: Light Dependent Resistor (LDR)
- Sensor Diameter: 20MM
- Operating Principle: Photoresistive Light Sensing
- Resistance in Darkness: High Resistance
- Resistance in Bright Light: Low Resistance
- Spectral Peak Sensitivity: Approx. 540nm
- Response Time: Fast Light Response
- Mounting Type: Through Hole
- Material Type: Cadmium Sulfide (CdS)
- Power Consumption: Low Power Operation
- Applications: Automatic Lights, Light Sensors, Alarm Systems, DIY Electronics
- Build Quality: Industrial-grade photosensitive resistor component

