{
  "url": "https://openlegislation.uk/eu-decision-2019-1119/annex/division-4/division-4.1/division-4.1.2/division-1",
  "json_url": "https://openlegislation.uk/eu-decision-2019-1119/annex/division-4/division-4.1/division-4.1.2/division-1.json",
  "legislation": "eudn/2019/1119",
  "legislation_title": "Commission Implementing Decision (EU) 2019/1119 of 28 June 2019 on the approval of efficient vehicle exterior lighting using light emitting diodes for use in internal combustion engine vehicles and non-externally chargeable hybrid electrified vehicles as an innovative technology for reducing CO2 emissions from passenger cars pursuant to Regulation (EC) No 443/2009 of the European Parliament and of the Council (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2019-1119",
  "path": "annex/division/4/division/4.1/division/4.1.2/division/1",
  "kind": "division",
  "number": null,
  "heading": "Formula 4",
  "text": "C CO 2 = ∑ m i = 1 ΔP i × UF i v × η DCDC × K CO 2 Where:\nηDCDC Efficiency of the DC-DC converter\nK CO 2 CO2 correction factor gCO 2 km ∕ Wh km , as defined in paragraph 2.2 of Appendix 2 to Sub-Annex 8 to Annex XXI to Regulation (EU) 2017/1151.\nThe efficiency of the DC-DC converter (ηDCDC ) shall be evaluated in accordance with the appropriate vehicle architecture, as specified in Table 7:\nTable 7\nEfficiency of the DC-DC converter for different vehicle light architectures\n#\nArchitecture\nηDCDC\n1\nLights connected in parallel to the low voltage battery (lights fed directly from the high voltage battery via DCDC converter)\n0,xx\n2\nLights connected in series after the low voltage battery, and the low voltage battery connected in series to the High voltage battery\n1\n3\nHigh Voltage and low voltage batteries have exactly the same voltage (12 V, 48 V,…) as the lights\n1\nFor architecture #1, the efficiency of the DC-DC converter (ηDCDC ) shall be the highest value resulting from the efficiency tests performed in the operative electric current range. The measuring interval shall be equal or lower than 10 % of the operative electric current range.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Substituted by Commission Implementing Decision (EU) 2020/1714 of 16 November 2020 amending Implementing Decision (EU) 2019/1119 as regards the testing methodology for certain not-off vehicle charging hybrid electric passenger cars and to take into account the use of alternative fuels and Implementing Decision (EU) 2020/1339 as regards rear position lamps (Text with EEA relevance)."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2019/1119/annex/division/4/division/4.1/division/4.1.2/division/1",
    "retrieved_at": "2026-11-01T15:12:39.399403+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."
}