EU Ecodesign SLR
EU Ecodesign Single Lighting Regulation — Commission Regulation (EU) 2019/2020
Definition
Commission Regulation (EU) 2019/2020 — the Single Lighting Regulation under the Ecodesign framework — sets ecodesign requirements for light sources and separate control gear placed on the EU market. It includes a flicker requirement of PstLM ≤ 1.0 and a stroboscopic-effect requirement based on SVM, both measured per the IEC and CIE standards.
Source overview
Annex II of Regulation (EU) 2019/2020 establishes specific ecodesign requirements for light sources, including limits on temporal light artifacts. PstLM (the short-term flicker severity per IEC TR 61547-1) must be at or below 1.0 for the source to be placed on the EU market under the regulation; SVM has a parallel requirement of ≤ 0.4 at full load and ≤ 0.9 at minimum dimmer setting (subject to product category).
The underlying standard is paywalled or otherwise not directly reproducible here. The text above is a plain-language summary written by Slick Engineering — not a verbatim quote. Authoritative source linked below.
Technical detail
The SLR replaces a patchwork of earlier directives covering specific lamp types (incandescent, halogen, fluorescent, LED) with a unified framework keyed to lumen output, power consumption, and TLA performance. It is the practical reason an LED product sold in the EU must produce a defensible PstLM number.
The regulation's full text is freely available on EUR-Lex (the European Union's public legal database) — unlike the underlying IEC and CIE measurement standards, which are paywalled.
Where it appears
- FlickerSpec Used here
FlickerSpec's IEC Certified Measurement (Pro) is structured to produce SLR-compatible PstLM evidence. Pro PDF reports include a clearly-labeled PstLM section with the EU Ecodesign threshold.
Related terms
- PstLM
PstLM is a single-scalar perceptual metric for how annoying flicker from a light source is to a static human observer. PstLM = 1.0 correspon…
- IEC TR 61547-1:2015
IEC TR 61547-1:2015 is the international Technical Report that defines a standardized light flickermeter — a model of human perceptual respo…
- SVM
SVM is a perceptual metric for the stroboscopic effect — the apparent stuttering or jagged motion of a moving object under modulated light. …
- IEEE 1789-2015
IEEE 1789-2015 is an IEEE recommended practice that defines low-risk and no-effect frequency / modulation-depth thresholds for current modul…