What the EU flicker standard means for your luminaire choice

Since 1 September 2021, EU Regulation (EU) 2019/2020 has set strict limits on flicker and stroboscopic effects for mains-powered LED light sources [6]. As an installer or lighting designer, this legislation requires you to check specifications closely when purchasing luminaires for office projects.

Flicker limits under Regulation (EU) 2019/2020

With Regulation (EU) 2019/2020, published on 1 October 2019 and whose consolidated version has applied since 1 September 2021, the European Commission tightened the rules on lighting [6]. This regulation replaces older legislation, including Regulations (EC) No 244/2009, (EC) No 245/2009 and (EU) No 1194/2012 [6]. The current regulation sets predetermined limit values for flicker ($PstLM le 1.0$) and the stroboscopic effect ($SVM = 0.4$) [4][6].

The impact of these limit values depends heavily on how the lighting system is built. According to technical documentation from manufacturer Tridonic dated May 2022, the $SVM = 0.4$ limit represents the perception threshold of the stroboscopic effect for test subjects under laboratory conditions [4]. Tridonic specifies in this documentation that systems consisting of a separate LED driver and LED module are not legally affected by the obligations of Regulation (EU) 2019/2020 [4]. The manufacturer does note, however, that these limit values are expected to become the general industry standard [4]. For mains-powered LED light sources, such as AC modules, the regulation became mandatory immediately after a transition period that ended on 1 September 2021 [4][6].

The difference between EU rules and UK legislation

For cross-border projects, it's important to be clear on the legal differences. Where the EU enforces its requirements through Regulation (EU) 2019/2020, the United Kingdom applies the "Ecodesign for Energy-Related Products and Energy Information (Lighting Products) Regulations 2021" [1]. This UK legislation largely came into force on 1 October 2021, with the exception of specific provisions in regulation 12(2)(a) and (b), which took effect on 1 March 2022 [1].

UK legislation uses a specific definition of a light source: an electrically powered product with a colour rendering index (CRI) greater than 0 and a luminous flux between 60 and 82,000 lumens [1]. This definition explicitly excludes LED dies, LED chips, LED packages, and products whose light source can be removed for verification [1]. Although the UK and EU rules often amount to the same thing in practice, installers and lighting studios operating internationally need to keep these definitions clearly separated to avoid errors in a specification.

Workplace lighting under the NEN-EN 12464-1 standard

Within Dutch (and wider European) commercial construction and office environments, the NEN-EN 12464-1 standard ("Light and lighting - Lighting of work places - Part 1: Indoor work places") is the guiding reference for every lighting design [5]. The original version of this standard dates back to 2003 and was the European successor to the old Dutch NEN 1890 standard [5]. After a second version in 2011, the third edition of this standard was published in 2021 [3][5]. This 117-page document sets strict requirements for the visual environment in the workplace [5].

The 2021 revision explicitly accounts for the technical evolution of LEDs, which have by now become the dominant light source in projects [3]. For a lighting studio, this means simply hanging a luminaire is no longer enough. Light intensity, glare (UGR) and colour rendering all need to match the specific tasks carried out in the space precisely. When specifying LED panels for an office environment, you therefore need to make sure the combination of driver and panel meets the flicker and glare requirements, to prevent fatigue complaints among employees.

The arrival of the Digital Product Passport

Alongside the direct product requirements around flicker, the European Union is preparing a major administrative change. On 20 July 2026, the European Commission launched the Digital Product Passport (DPP) Register and an accompanying test environment under the Ecodesign for Sustainable Products Regulation (ESPR) (EU) 2024/1781 [2]. This register is designed to support products that fall under the ESPR, including energy-related products such as lighting [2].

The introduction of this digital passport is rolling out in phases. The very first implementation deadline for the DPP system is set at 18 February 2027, but it applies specifically to certain types of large batteries [2]. For the lighting sector, there is as yet no mandatory registration deadline in 2026, but the technical foundation is already in place. The system relies on eight harmonised standards that govern interoperability, such as unique identifiers, data carriers, APIs and data-storage protocols [2]. Six of these eight standards were developed in cooperation with CEN-CENELEC and had already been published by national standardisation bodies as of 20 July 2026 [2]. This means manufacturers and importers will need to align their product data with this standard over the coming years.

Making choices for your projects

For the day-to-day practice of installers and lighting studios, component quality is decisive. When designing a lighting plan for retail or hospitality, you'll often choose flexible systems such as 3-circuit track rail systems combined with adjustable track spots. To guarantee these spots don't cause distracting flicker on the shop floor, choosing a high-quality driver is essential. Although systems with a separate driver and module aren't directly bound by the legal obligation of the flicker standard according to Tridonic's documentation, they do set the quality standard that clients expect [4].

The same applies to larger commercial projects using high bays / floodlights or complete light line systems. In industrial halls with fast-rotating machinery, a stroboscopic effect can even create dangerous situations. By selecting luminaires that stay well below the $SVM = 0.4$ limit, you prevent visual disorientation and meet your duty of care for a safe working environment. The reliability of the electronics is likewise critical to safety during a power outage when designing emergency lighting within a project.

When drawing up your next quote, make sure the technical specifications of drivers and LED modules are stated explicitly. This gives the client confidence that the project not only meets the current NEN-EN 12464-1 standard, but is also prepared for the stricter requirements the market will demand in the coming years [3][5].

Sources

• [1] legislation.gov.uk
• [2] single-market-economy.ec.europa.eu
• [3] nsvv.nl
• [4] a.storyblok.com
• [5] nen.nl
• [6] eur-lex.europa.eu

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Summary

Strict EU limits on flicker and stroboscopic effects for LED lighting have applied since September 2021. Read how these requirements and the NEN-EN 12464-1 standard directly affect your luminaire choice and project designs.