Key points of this article:

• The FlexLight 2026 regulatory framework mandates documented spectral labeling and native digital traceability, going well beyond the obligations of the ErP directive.
• Registration in the European EPREL database is now the absolute prerequisite for placing horticultural lighting on the market in Europe.
• Defective spectral documentation degrades your farm's IDEA4 score and can block access to "green" bank financing.
• Non-compliant installations expose the operator to immediate formal notices and yield losses of up to 30% during a forced replacement in the cycle.
• Native digital traceability has become the primary selection criterion in public and private tenders in the horticultural sector.

Did you think that the ErP compliance of your LED lighting fleet protected you for years to come? It is precisely this certainty that the FlexLight 2026 framework calls into question. The LED Taxonomy 2026 and the FlexLight regulation introduce a radically new requirement: documented transparency of every light spectrum used in production, recorded digitally, in real time, and available for inspection upon request. It's no longer a question of raw technical performance, but of proof.

The ErP directive regulated energy consumption and minimum equipment performance. FlexLight goes further by focusing on what you do with your light: which spectra, at what intensity, during which growth phases, and above all, how you demonstrate it. For greenhouse managers, agronomists, and technical directors of operations, the regulatory landscape has changed fundamentally, not just in degree.

This article analyzes the concrete requirements of this new framework, their impacts on your tenders, your financing and your continuity of production, as well as the technological choices that now separate secure operations from risky installations.

Why does FlexLight 2026 go further than the ErP directive?

The ErP (Energy-related Products) Directive set energy performance and luminous efficacy thresholds for products placed on the market. FlexLight 2026 adds an entirely new layer: the obligation to characterize and document the spectral profile of each horticultural luminaire, directly linked to its declared agronomic use. It is no longer the product alone that is evaluated, but its intended use.

In practice, the ErP directive classified a luminaire according to its efficiency in lumens per watt. FlexLight requires that each emitted spectrum be described, recorded, and traceable: spectral distribution by wavelength range (PAR, far-red, UV-A), R:FR ratio, certified PPFD index, and dynamic variations if the system is controllable. For luminaires with adjustable spectrum—which represent a growing share of the professional market—each spectral configuration used in production must be logged.

Criterion	ErP Directive	FlexLight 2026 Frame
Subject of control	Product energy performance	Documented spectral usage in production
Registration required	Manufacturer's product sheet	EPREL database + native usage log
Dynamic traceability	Not required	Required for controllable systems
Impact on financing	Indirect (energy class)	Direct (IDEA4 score, green credit)
Risk in case of non-compliance	Product withdrawal from the market	Formal notice to the operator + production stoppage

This shift is fundamental. With ErP, the risk lay with the manufacturer. With FlexLight, it lies with the operator using the equipment. Responsibility has moved further down the chain.

"Registration in the European EPREL database is the minimum requirement for placing horticultural lighting on the market from the 2026 framework onwards." - European EPREL database

What exactly does EPREL registration require of your farm?

EPREL (European Product Registry for Energy Labelling) is the European Commission's official database that centralizes the technical data sheets for products subject to energy labelling. As of the FlexLight 2026 framework, no horticultural lighting fixture can legally be put into service in a professional context without being listed in EPREL. This minimum requirement has direct consequences for your purchasing processes.

When renewing or expanding your lighting system, you must now request the EPREL reference number of the product before placing any order. A luminaire not listed in the EPREL database at the time of commissioning renders your installation non-compliant, regardless of the equipment's actual technical performance. This represents a paradigm shift for buyers: documentary compliance now takes precedence over agronomic performance in the order of purchasing priorities.

For projects currently being delivered or equipment ordered before the framework came into effect, a compliance period is provided, but it is short. Operators who did not anticipate this point find themselves with a stock of technically efficient but administratively problematic equipment. The question is not whether your LEDs function correctly, but whether they can demonstrate this according to the European standard.

How does faulty spectral documentation degrade the IDEA4 score and access to green financing?

The IDEA4 score (Agricultural Environmental Sustainability Index, 4th generation) now incorporates spectral compliance into its evaluation criteria. A lighting installation not documented according to FlexLight requirements will automatically lower this score, directly impacting your ability to access bank credit lines labeled "green financing".

This link between regulatory compliance and access to financing is a structural change introduced in 2026. Banks partnering with green credit programs now require a minimum IDEA4 score for their offers, meaning that inadequate spectral documentation can effectively close off access to preferential rates or specific refinancing lines. For farms that have structured their investment plans around this financing, the impact is immediate.

"Spectral compliance is now integrated into IDEA4 scores. Deficient documentation lowers the farm's environmental score, limiting access to green bank financing." - Lynxee Consulting's technical and regulatory monitoring

The mechanism is as follows: your environmental certifier requests spectral usage logs to validate your score. If your system doesn't generate this data automatically, you have to reconstruct it manually—a lengthy, imprecise process whose validity can be challenged. Farms equipped with native traceability systems obtain their score in minutes. Others spend weeks compiling a lower-quality report.

What operational risks does an operator face in the event of non-compliance with FlexLight?

The risks are not theoretical. Failure to comply with FlexLight 2026 requirements exposes the operator to two distinct categories of harm: an immediate administrative risk and a serious agronomic risk linked to the forced interruption of production. The two can occur simultaneously.

From an administrative standpoint, an inspection can lead to an immediate formal notice to comply. Unlike standard product compliance orders, which concern the manufacturer, a FlexLight formal notice targets the operator, meaning it's your business that's under scrutiny, not your supplier's. You are responsible for demonstrating that your installation complies, not just that your equipment is certified.

"Installations not compliant with the 2026 criteria expose the operator to immediate formal notices, with yield losses of up to 30% during a forced replacement mid-cycle." - Lynxee Consulting Technical and Regulatory Monitoring

From an agronomic perspective, the most underestimated risk is that of forced replacement during the growing cycle. Abruptly interrupting or altering the light regime of a crop in its flowering or fruiting phase causes severe physiological stress. Yield loss estimates related to this type of disruption reach 30%, depending on the crop species. For a high-value vegetable or flower farm, this figure represents a considerable economic loss for the season.

What FlexLight now requires in public and private tenders: how to prepare?

Native digital traceability has become the new entry criterion in public and private consultations within the horticultural sector. Buyers, whether local authorities, agricultural cooperatives, or integrated agri-food groups, have incorporated FlexLight requirements into their technical specifications, often even before some suppliers have updated their catalogs.

In practical terms, specifications compliant with the 2026 requirements now include clauses relating to: the EPREL reference of the proposed equipment, the control system's ability to generate time-stamped spectral logs, compatibility with the site's agro-climatic management systems, and the provision of digital spectral footprint documentation for each configuration used. Suppliers who cannot meet these four requirements are eliminated during the bid analysis, regardless of price or declared luminous performance.

This change transforms the structure of calls for tenders. Performance (PPFD, uniformity, efficiency in µmol/J) remains a technical criterion, but it is now preceded by documentary compliance. A technically excellent luminaire that lacks EPREL or whose control system does not generate native logs simply cannot be selected. The market has integrated this reality faster than many suppliers anticipated.

Dynamic spectrum control: why do closed systems become cost sinks?

The professional market is shifting towards systems capable of modifying the spectrum in real time, according to growth phases, climatic conditions, or agronomic protocols. This evolution is technically exciting, but it creates a clear divide between open systems, capable of automatically documenting their spectral variations, and closed systems, which cannot.

A closed system, as defined by FlexLight 2026, is one whose operation does not generate an accessible, exportable, and time-stamped spectral log. These systems, often marketed three to five years ago as high-end solutions, now face a double penalty: they cannot meet audit traceability requirements, and they are incompatible with the upcoming phased regulatory changes. Each subsequent regulatory update will necessitate manual intervention, additional integration costs, and potentially a partial or complete system replacement.

"Public and private buyers are automatically eliminating suppliers who do not offer native digital traceability. Compliance is the new entry ticket to the market." - LightingEurope Guides on SLR/ELR Regulations

The question to ask any supplier is simple and direct: does your control unit natively generate a time-stamped spectral log, exportable in a standard format, without manual intervention? If the answer is "optional," "under development," or "via an additional module," you have the answer regarding the true positioning of this solution in relation to the 2026 requirements.

Evidence-based certification: what does this emerging standard consist of?

Certification by proof refers to the ability of a lighting system to automatically generate, without manual input, all the data necessary to demonstrate its regulatory compliance. It represents a shift from a declarative approach – "our equipment is certified" – to a probative approach – "here is the proof of what we have done, hour by hour, since commissioning."

Technically, this relies on what can be called a digital spectral fingerprint: a unique identifier for each spectral configuration used, associated with time-stamped metadata (date, duration, intensity, spectral range) and exportable to environmental certification tools. VGD control units natively generate this fingerprint at each cycle, without any administrative burden for the technical team, and with direct compatibility with FlexLight protocols.

The operational gain is substantial. Where an operator with a non-compliant system spends dozens of administrative hours per season manually reconstructing field data for an audit, a natively certified system produces the certificate in minimal time. This represents a direct saving of skilled labor time, as well as a reduction in the risk of errors or disputes regarding the presented data.

What FlexLight is changing in the relationship between supplier and operator: a new contract of trust

FlexLight 2026 fundamentally changes what you should expect from your lighting solutions provider. Luminous performance remains the starting point, but it is no longer sufficient. The primary selection criterion becomes the provider's ability to guarantee your operational continuity in the face of evolving regulations, not just the quality of their luminaires on the day of delivery.

In practical terms, this translates into new questions to ask during your consultations: what is this supplier's compliance roadmap regarding upcoming FlexLight updates? Are software updates for the control system included? Is their system's API open and documented? Can they contractually guarantee their solution's compatibility with regulatory changes over the next three years?

A supplier who cannot answer these questions precisely is transferring part of their regulatory risk to you. VGD, based in Eyragues, Provence, has structured its offering around this principle: the value of a professional lighting solution is measured as much by its ability to produce useful light as by its ability to provide documented proof of this, both today and in future regulatory developments.

Summary in 45 seconds (presentation script):
"In 2026, an undocumented lighting installation is a ticking time bomb for your operation. What is the true cost of a production shutdown following a non-compliant audit? The FlexLight regulation is not just a technical standard; it's your new requirement for transparency. VGD solutions natively integrate your spectral traceability. With each cycle, your compliance is automatically generated, without administrative burden, without risk of additional costs, and ready to be presented to certifiers. Stop being a victim of regulations; take control of your compliance. Switch to VGD lighting: the only solution that secures your production and your peace of mind."

F.A.Q

Is my ErP-compliant equipment automatically FlexLight 2026 compliant?

No. ErP compliance attests to the product's energy performance as defined by the European directive on energy-related products. FlexLight 2026 adds separate requirements: EPREL registration, documentation of spectral usage in production, and native digital traceability of the configurations used. An ErP-compliant luminaire can still be non-compliant with FlexLight if its control system does not generate accessible spectral logs.

What are the concrete risks for an operator whose installation does not comply with FlexLight?

Two distinct risks are cumulative. Administratively, an immediate formal notice can be issued to the operator (not the manufacturer) during an inspection. Agronomically, the forced replacement of lighting fixtures during the growing cycle can cause yield losses of up to 30%, depending on the species and growth stages involved. These two risks are independent of the price or technical quality of the installed equipment.

What is the EPREL database and why has it become essential by 2026?

EPREL (European Product Registry for Energy Labelling) is the European Commission's official database that centralizes technical data sheets for products subject to energy labelling. Since the FlexLight 2026 framework, registration in this database is the minimum requirement for placing any horticultural lighting fixture on the market. A product not listed in EPREL at the time of commissioning renders the installation non-compliant, regardless of its actual technical performance.

How is the IDEA4 score affected by spectral conformity?

The IDEA4 score (Agricultural Environmental Sustainability Index, 4th generation) now incorporates the quality of lighting spectral documentation into its evaluation criteria. Farms whose lighting systems do not produce compliant spectral logs will see their score downgraded, which can block access to "green" bank financing lines that are conditional on a minimum IDEA4 level. The link between regulatory compliance and access to credit is direct and well-documented.

What is a "FlexLight Ready" system and how can it be distinguished from a closed system?

A FlexLight Ready system is a horticultural lighting system whose control unit natively generates time-stamped spectral logs, exportable in a standard format, without manual intervention. It is compatible with agro-climatic management systems and can produce the digital spectral fingerprint required during an audit. A closed system, on the other hand, does not generate this data or does so only via non-standardized optional modules, resulting in additional integration costs with each regulatory update.

Looking ahead to 2027 and beyond: FlexLight is not the end of an era

What is emerging beyond 2026 is a gradual normalization of spectral traceability as a basic standard in the professional horticultural market, just as food traceability has become for products intended for consumption. Farms that have structured their lighting systems around this principle now are not subject to regulatory constraints: they are transforming them into a competitive advantage in tenders, a bargaining chip with banks, and an argument for environmental certification.

Upcoming developments in the FlexLight framework are expected to increase the granularity requirements for spectral data and broaden the scope of species and cropping systems covered. Farms using open systems, with documented APIs and included software updates, will absorb these changes without disruption or significant additional costs. Others will have to choose between costly upgrades and complete system replacements.

The question is no longer whether your installation will one day be subject to a FlexLight audit, but whether, on that day, your system will be able to respond with a click or with several weeks of administrative work.

VGD supports professionals in horticulture, plant research, and industrial agriculture through this transition from Eyragues, Provence. Whether you're renewing your equipment, designing a new installation, or preparing for an audit, our technical team will conduct a FlexLight compliance audit of your current situation and propose a concrete action plan. Contact us to schedule this support. 💡🌱🔬🇫🇷