The Forum adopted a new UN Regulation on LED light sources at its March 2012 session. This document updates the collective amendment that introduces LED light sources into the relevant UN Regulations 4, 6, 7, 23, 38, 50, 77, 87, 91 and 119.

Proposal from the Working Party “Brussels 1952” (GTB) introducing a new category LW2 into the new draft Regulation for LED light sources ¹²⁷ and introducing some editorial amendments to the existing text.

GRE/2012/40 is a proposal from the Working Party “Brussels 1952” (GTB) introducing a new category LW2 into the new draft Regulation for LED light sources [UN R127] and introducing some editorial amendments to the existing text. GTB proposes this correction to better align its wording with UN R37.

Proposal to introduce new categories LR3A, LR3B, LR4A, LR4B and correct one value in the ultraviolet (UV) table.

Presentation on activities, especially LED retrofit study.

Proposal to introduce new Light Emitting Dodes (LED) light source categories LW3, LY3, LR5, LW5 and LY5 and to align some drawings of category LR4 with drawings of these new categories.

The collective amendment presented in GRE/2016/34 extends the usage of LED light sources of UN R128 to front lighting Regulations Nos. 19, 98, 112, 113 and 123. The introduction of LED light source categories under UN R128 for forward lighting applications (front fog, low beam, high beam,
AFS) is planned for 2017. This presentation explains the plans, timeline, and dependencies GTB proposes to address through the collective amendment, especially within the context of the simplification of lighting regulations program.

Proposal to

1. introduce provisions for LED substitute light sources into Regulation No. 128;
2. introduce new category sheets C5W/LED, PY21W/LED and R5W/LED based on LED technology into the Consolidated Resolution (R.E.5);
3. establish equivalence criteria as guidance for specifying sheets for LED substitute light source categories. (These guidelines are intended for publication, with the agreement of GRE, on the GRE website under “reference documents”, similar to criteria for new filament light sources for head lighting (GRE-77-04). In addition, these criteria are being prepared for insertion in publication IEC 60810.);
introduce equivalence reports for the new categories C5W/LED, PY21W/LED and R5W/LED in LED technology (see GRE-77-02).

Proposal to introduce requirements and test specifications to light emitting diode (LED) forward lighting light sources.

The regulation of lighting includes individual regulations for specific lighting devices (headlamps, direction indicators, etc.), for light source (filament, gas, LED), and for installation (UN R48). The proposed UN R0 on the type approval of whole vehicles requires submission of approval certificates for components and systems to be included within the whole vehicle approval. Vehicle manufacturers work directly with UN R48 approvals, but lamp and device approvals are generally handled by lighting suppliers. UN R48 includes provisions for listing approvals of lighting units, but not for approvals of light sources (presently UN R37, R99, and R128). In order to avoid excessive administrative burdens, GTB proposes that the regulations covering light units include provisions to confirm their approval under the applicable light source regulations such that UN R48 approvals would represent approval of the vehicle lighting systems under both device regulations and light-source regulations.

Updated proposal to introduce requirements and test specifications to light emitting diode (LED) forward lighting light sources.

Proposal to introduce a new light emitting diode (LED) forward lighting light source category L1/6. The proposal is part of a package which also includes amendments to Regulation No. 128. 2. GTB proposes one category L1/6 with “maximum test temperature” 65 °C. The definition of the maximum test temperature is necessary to ensure interchangeability between approved light sources from different manufacturers. A separate (unique) light source category is specified for every “maximum test temperature”. The choice of installation of a light source with a given maximum test temperature is based on the application in the vehicle and determined by due diligence of the car maker and set maker, in the same way as is now the case with LED modules.

Proposal to introduce new light-emitting diode (LED) substitute light source categories C5W/LED, PY21W/LED and R5W/LED. This proposal is part of a package which also includes amendments to Regulation No. 128.

Proposal to introduce requirements and test specifications for light emitting diode (LED) light sources for forward lighting.

Proposal to introduce requirements and test specifications for light emitting diodes (LED) substitute light sources, including to

1. introduce provisions for LED substitute light sources into Regulation No. 128;
2. introduce new category sheets C5W/LED, PY21W/LED and R5W/LED based on LED technology into the Consolidated Resolution (R.E.5);
3. establish equivalence criteria as guidance for specifying sheets for LED substitute light source categories. (These guidelines are intended for publication, with the agreement of GRE, on the GRE website under “reference documents”, similar to criteria for new filament light sources for head lighting (GRE-77-04). In addition, these criteria are being prepared for insertion in publication IEC 60810.);
introduce equivalence reports for the new categories C5W/LED, PY21W/LED and R5W/LED in LED technology (see GRE-77-02).

The current text of UN R128, Annex 4, paragraph 1.2. allows only for a decrease of luminous flux from 1 minute to 30 minutes. This has proven to be unnecessarily design restrictive as the drive electronics in a stabilized light source can lead to a slight increase in the luminous flux from 1 minute to 30 minutes. Therefore, this proposal would allow a limited increase of luminous flux from 1 minute to 30 minutes within the given minimum and maximum requirements. This proposal relates to document GRE/2018/48 retaining requirements for LR4 category light sources which would otherwise have been impacted by the present proposal.

Modification of Figure 1 (Example of allowed luminous flux behaviour of an approved LED light source under UN
Regulation No.128, Annex 4, paragraph 1.2.) to add the range after one minute and 30 minutes with a positive or negative “gradient”.

Presentation in support of the proposa to introduce new light emitting diode (LED) substitute light source categories C5W/LEDK and R5W/LED (document GRE/2019/9).

Presentation in support of the proposal to introduce new LED substitute light source categories W5W/LEDK and WY5W/LED (document GRE/2019/10).

Proposal to insert a minimum luminance gradient as an alternative criteria. The current text requires a certain “asymmetry” of the Light Emitting Area (LEA) in order to ensure a “minimum worst-case gradient”; however, this requirement has been deemed too design-restrictive.

Proposal to make an editorial correction to the requirements to light emitting diode (LED) light sources.