{
  "url": "https://openlegislation.uk/eu-regulation-2019-2015/annex-II",
  "json_url": "https://openlegislation.uk/eu-regulation-2019-2015/annex-II.json",
  "legislation": "eur/2019/2015",
  "legislation_title": "Commission Delegated Regulation (EU) 2019/2015 of 11 March 2019 supplementing Regulation (EU) 2017/1369 of the European Parliament and of the Council with regard to energy labelling of light sources and repealing Commission Delegated Regulation (EU) No 874/2012 (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2019-2015",
  "path": "annex/II",
  "kind": "annex",
  "number": "II",
  "heading": "Energy efficiency classes and calculation method",
  "text": "The energy efficiency class of light sources shall be determined as set out in Table 1, on the basis of the total mains efficacy ηTM, which is calculated by dividing the declared useful luminous flux Φuse (expressed in lm) by the declared on-mode power consumption Pon (expressed in W) and multiplying by the applicable factor FTM of Table 2, as follows:\nηTM = (Φuse/Pon) × FTM (lm/W).\nTable 1\nEnergy efficiency classes of light sources\nEnergy efficiency class\nTotal mains efficacy ηΤM (lm/W)\nA\n210 ≤ ηΤM\nB\n185 ≤ ηΤM < 210\nC\n160 ≤ ηΤM < 185\nD\n135 ≤ ηΤM < 160\nE\n110 ≤ ηΤM < 135\nF\n85 ≤ ηΤM < 110\nG\nηΤM < 85\nTable 2\nFactors FTM by light source type\nLight source type\nFactor FTM\nNon-directional (NDLS) operating on mains (MLS)\n1,0\nNon-directional (NDLS) not operating on mains (NMLS)\n0,926\nDirectional (DLS) operating on mains (MLS)\n1,176\nDirectional (DLS) not operating on mains (NMLS)\n1,089",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2019/2015/annex/II",
    "retrieved_at": "2026-11-01T14:43:00.426575+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}