By Hubert Paroń, Electronics Engineer, Signify

When most people think about lighting engineering, they imagine offices, warehouses, streets, or commercial buildings. Agricultural lighting presents a very different challenge.

Designing lighting systems for poultry houses and swine facilities requires engineers to account for environmental conditions that would quickly damage conventional lighting products. High humidity, ammonia exposure, aggressive cleaning chemicals, pressure washing, dust, and fluctuating electrical conditions all place unique demands on lighting systems.

As agricultural operations continue modernizing across Europe and around the world, lighting has evolved from a basic utility into a critical component of animal welfare, operational efficiency, and farm management.

Poland's Evolution from Traditional Lighting to LED Systems

Poland's transition to LED lighting began roughly 15 years ago, initially driven by public infrastructure projects such as street lighting modernization. Agricultural lighting adoption followed more gradually due to the cost-sensitive nature of farming operations.

Today, the transition is largely complete. Farmers have moved beyond simply replacing older technologies with LEDs and are increasingly seeking lighting systems that deliver precise control, reliability, and long-term operational value.

Poland's lighting sector has developed significant expertise through decades of engineering and manufacturing experience. Companies such as Signify, LUG Light Factory, and Lena Lighting have established strong R&D and production capabilities in the country, creating a mature ecosystem of lighting design and engineering talent.

The New Generation of Agricultural Lighting

One of the most significant shifts occurring today is the move from basic LED installations toward fully engineered lighting systems.

Modern livestock producers increasingly require:

• Precise and repeatable photoperiod control

• Deep dimming capabilities without flicker

• Long service life in corrosive environments

• Lower operating costs amid rising energy prices

• Integrated control and monitoring capabilities

These requirements are especially important in poultry production, where lighting directly influences animal behavior, welfare, and performance.

While these trends are global, Europe often experiences accelerated adoption due to stringent energy-efficiency regulations, ecodesign requirements, and sustainability initiatives. Farmers are under increasing pressure to maximize efficiency while maintaining high production standards.

Designing for One of the Harshest Lighting Environments

Many of the engineering challenges found in agricultural facilities simply do not exist in traditional commercial applications.

Ammonia generated within livestock facilities can attack plastics, corrode metal components, and degrade electronic circuitry. Cleaning protocols often involve harsh chemical agents and high-pressure washdowns that can quickly compromise poorly designed products.

As a result, agricultural luminaires must be engineered with:

• Hermetically sealed housings

• Corrosion-resistant materials

• Robust electronic protection

• Conservative thermal management

• Long-term reliability under repeated washdown cycles

Environmental testing plays a critical role in validating these designs.

At Signify's R&D facilities, engineers use climate chambers to perform accelerated life testing under elevated temperature and humidity conditions. These tests help simulate years of field exposure within a compressed timeframe, allowing engineers to identify potential failure modes before products reach customers.

Why Animal Lighting Requires Different Engineering

Beyond environmental durability, agricultural lighting must also account for the biological needs of animals.

Unlike humans, poultry are highly sensitive to changes in light intensity and spectral composition. Abrupt transitions or flicker that may go unnoticed by people can create stress responses in birds.

This creates unique engineering requirements:

• Flicker-free operation

• Extremely smooth dimming transitions

• Species-specific light spectra

• Consistent light distribution

• Long-term performance stability

For example, specific combinations of blue and green wavelengths have been shown to influence poultry behavior and reduce stress under certain production conditions.

Verifying these characteristics requires specialized optical measurement equipment.

Engineers use goniometers to measure light distribution patterns and spectral performance, ensuring that lighting systems deliver consistent output throughout a facility.

Lessons Learned from the Field

One of the most important lessons agricultural lighting engineers have learned is that laboratory performance alone does not guarantee success.

A lighting system may achieve excellent efficacy measurements under controlled conditions but fail prematurely if it cannot withstand years of exposure to ammonia, humidity, washdowns, and voltage fluctuations.

This reality has shifted engineering priorities.

Today, reliability, controls quality, serviceability, and predictable system behavior often create more value than marginal improvements in efficiency specifications.

Engineers increasingly focus on questions such as:

• Will dimming remain consistent after years of operation?

• Can the product withstand repeated cleaning cycles?

• How easily can maintenance be performed?

• Will lighting schedules remain reliable throughout the product lifecycle?

These considerations ultimately have a direct impact on farm operations, animal welfare, and production outcomes.

Looking Ahead

The agricultural lighting market is entering a new phase.

In the near future, robust dimmable LED systems with advanced controls will become the industry standard rather than premium offerings.

Longer term, lighting will increasingly become part of a farm's broader digital infrastructure. Lighting systems will integrate with environmental controls, energy management platforms, and operational monitoring tools.

As this evolution continues, engineering priorities will extend beyond photometric performance to include cybersecurity, system interoperability, diagnostics, serviceability, and lifecycle management.

For agricultural lighting engineers, the challenge is no longer simply producing light. It is designing intelligent systems capable of delivering reliable performance in some of the world's most demanding operating environments.

 

About the Image

One of the tools our engineering team uses is a climate chamber, which allows us to simulate years of environmental exposure in a controlled setting. By testing products under varying temperature and humidity conditions, we can evaluate durability, performance, and reliability long before a product reaches the field.

This type of accelerated life testing helps answer critical questions:

✔️ Will the product withstand demanding farm conditions?
✔️ How will it perform after years of use?
✔️ Are there opportunities to improve the design before launch?

 

About the Author

Hubert Paroń is an Electronics Engineer at Signify responsible for the development of electronic circuits, LED drivers, and lighting control systems. He works closely with global R&D teams to develop advanced lighting technologies that support animal welfare, farm productivity, and operational performance.