How Do Photoelectric Photocontrollers Work?

Photoelectric photocontrollers operate based on the photoelectric effect and semiconductor photosensitive elements. When light hits these elements (such as photoresistors, photodiodes, or phototransistors), it excites charges within them, causing electron transitions or changes in resistance. These changes are detected by the circuit, which then controls the electronic device's operation.

How Do Thermally Activated Photocontrollers Function?

Thermally activated photocontrollers combine a photoresistor with a thermally sensitive bimetallic strip. Changes in ambient light alter the photoresistor's resistance, affecting the current through the bimetallic strip. This current change causes the strip to heat up and deform, controlling the switch's on-off state. Strong light decreases resistance, increases current, and triggers the switch action.

What Factors Should I Consider When Choosing Outdoor Photocontrollers?

When selecting outdoor photocontrollers, consider the following: Waterproof Performance: Ensure good waterproofing to prevent rain damage. Weather Resistance: Choose units that can withstand various climatic conditions. Sensitivity Adjustment: Look for adjustable light sensitivity to set the brightness threshold. Delay Function: Opt for models with delay functions to avoid frequent switching. Brand and Quality: Prefer well-known brands for better quality and service. Installation Method: Select a suitable installation method, such as wall-mounted or embedded.

What Should I Look For When Selecting Photocontroller Sockets?

When choosing photocontroller sockets, consider: Voltage and Current Specifications: Ensure compatibility with the connected appliance to avoid overload or undervoltage. Interface Standards and Compatibility: NEMA Standard: Suitable for high-voltage AC systems in North America. Zhaga Standard: Low-voltage DC interface supporting Dali 2.0, common in Europe. Functional Requirements: Determine if additional functions like dimming or remote control are needed. Safety Protection: Check for overcurrent and short-circuit protection. Material and Craftsmanship: Choose durable materials and fine workmanship for longevity.

How Should I Install And Maintain Photocontrollers And Their Sockets?

For optimal performance: Installation: Follow manufacturer guidelines for proper installation, ensuring secure and stable mounting. Maintenance: Regularly inspect for damage or wear, clean components to prevent dust accumulation, and test functionality periodically. Environmental Considerations: Ensure the installation site is free from excessive moisture, extreme temperatures, and direct exposure to harsh weather conditions.

LongJoin Photocell, Dusk to Dawn Photocell Light Sensor for Outdoor Street Lamp

Diverse Types of Street Lighting Photocells

The JL series photocontrollers offer a rich product line, encompassing various models to meet a wide array of application needs. Specifically, it includes the JL-1 and JL-4 photoelectric sensors, which are compact and easy to install; the JL-2 series (with NEMA interface) and JL-7 series (Z-LEX-R, Z-LEX-C), both featuring light depreciation compensation functions. The JL-3 series lamp base photocontrollers, designed based on an electric heating structure, are suitable for E26/E27/E12 lamp holders. The photocontroller bases conform to both NEMA and Zhaga standards. To facilitate power management and maintenance, we also provide short-circuit caps and open-circuit caps. The extensive range of accessories, including customizable covers and widely compatible bases, further satisfies the diverse requirements of users.

Direct Wire-in Photocontrol

Know More >

Twist Lock Photocell

Know More >

Light Bulb Socket

Know More >

Why Choose A Photocontroller?

1.Innovative Technology: Adopting a unique "Compensatory Photosensitive Soft Switch" technology, it precisely tracks and detects ambient brightness. By dynamically adjusting the luminous flux output of luminaires, it achieves a harmonious complementarity between natural light and artificial light sources, ensuring stable core illumination intensity in the area while effectively saving energy, embodying a green and environmentally friendly concept.
2.Constant Illumination Control: The photocontroller can automatically adjust the illumination of street lights according to the intensity changes of the external environment light. This function ensures that the brightness irradiating the ground is basically maintained at a constant illumination value, significantly enhancing the illumination sensory experience and providing a more comfortable light environment for pedestrians.
3.Midnight Dimming Function: In remote control mode, users can customize the time periods and brightness ratios for midnight dimming. This design not only effectively saves energy but also reduces environmental light pollution, creating a quieter and more comfortable atmosphere at night.
4.Light Decay Compensation Mechanism: The photocontroller can automatically compensate for the light decay rate of conventional LEDs. For different luminaires, users can remotely adjust the compensation rate to ensure that the maximum brightness is maintained at a stable value. This function effectively guarantees safe illumination, prolongs the lifespan of luminaires, and brings users a more reliable and durable lighting experience.

Applications/Cases of Street Lighting Photocells

In the field of lighting, photocontrollers find extensive and diverse applications, primarily manifesting in the following scenarios:

Street Light Control: In urban road lighting systems, street light photocontrollers play a pivotal role. They intelligently adjust the illumination output of LED luminaires based on ambient light levels, ensuring a consistent brightness environment within the jurisdiction. When natural light intensity reaches 110% of the preset value, the controller automatically turns off the luminaires, achieving zero output. Additionally, the system features a midnight dimming function, which can reduce the output brightness of LED luminaires (e.g., D40) and set specific time periods (e.g., L30). Typically, this dimming process concludes approximately one hour before dawn. This function not only effectively reduces light pollution but also significantly cuts energy consumption.

Garden and Landscape Lighting: Photocontrollers are also widely used in garden and landscape lighting equipment. They automatically adjust the lighting state of luminaires based on ambient light, creating a beautiful and comfortable nighttime environment while achieving energy savings.

Indoor Lighting: In indoor lighting scenarios, photocontrollers play a crucial role as well. Regardless of whether someone is home, photocontrollers can automatically turn on lighting luminaires based on indoor light intensity, creating an occupied environment and serving as a deterrent and warning, thereby enhancing home security.

Special Place Lighting: For places that require prolonged lighting, such as underground parking garages and tunnels, photocontrollers can automatically adjust the brightness and range of lighting based on vehicle or pedestrian activity. This not only meets lighting needs but also avoids unnecessary energy waste.

In summary, the application of photocontrollers in the lighting field not only enhances the intelligence level of lighting systems but also effectively promotes energy savings and sustainable environmental development, bringing more convenience and comfort to people's lives.

FAQs About Street Lighting Photocells

How Do Photoelectric Photocontrollers Work?

Photoelectric photocontrollers operate based on the photoelectric effect and semiconductor photosensitive elements. When light hits these elements (such as photoresistors, photodiodes, or phototransistors), it excites charges within them, causing electron transitions or changes in resistance. These changes are detected by the circuit, which then controls the electronic device's operation.
How Do Thermally Activated Photocontrollers Function?

Thermally activated photocontrollers combine a photoresistor with a thermally sensitive bimetallic strip. Changes in ambient light alter the photoresistor's resistance, affecting the current through the bimetallic strip. This current change causes the strip to heat up and deform, controlling the switch's on-off state. Strong light decreases resistance, increases current, and triggers the switch action.
What Factors Should I Consider When Choosing Outdoor Photocontrollers?

When selecting outdoor photocontrollers, consider the following:
Waterproof Performance: Ensure good waterproofing to prevent rain damage.
Weather Resistance: Choose units that can withstand various climatic conditions.
Sensitivity Adjustment: Look for adjustable light sensitivity to set the brightness threshold.
Delay Function: Opt for models with delay functions to avoid frequent switching.
Brand and Quality: Prefer well-known brands for better quality and service.
Installation Method: Select a suitable installation method, such as wall-mounted or embedded.
What Should I Look For When Selecting Photocontroller Sockets?

When choosing photocontroller sockets, consider:
Voltage and Current Specifications: Ensure compatibility with the connected appliance to avoid overload or undervoltage.
Interface Standards and Compatibility:
NEMA Standard: Suitable for high-voltage AC systems in North America.
Zhaga Standard: Low-voltage DC interface supporting Dali 2.0, common in Europe.
Functional Requirements: Determine if additional functions like dimming or remote control are needed.
Safety Protection: Check for overcurrent and short-circuit protection.
Material and Craftsmanship: Choose durable materials and fine workmanship for longevity.
How Should I Install And Maintain Photocontrollers And Their Sockets?

For optimal performance:
Installation: Follow manufacturer guidelines for proper installation, ensuring secure and stable mounting.
Maintenance: Regularly inspect for damage or wear, clean components to prevent dust accumulation, and test functionality periodically.
Environmental Considerations: Ensure the installation site is free from excessive moisture, extreme temperatures, and direct exposure to harsh weather conditions.

Contact LongJoin

We Take Pride in Delivering Precision and Excellence with Every Street Lighting Controller We Provide.

Lastet News About LongJoin

Apr 05

Guide to Installing Street Light Photocells more 

Mar 26

Features and Installation Methods of Photocontrol Receptacles more 

Mar 16

Main Types of Street Light Photocells more 