Proposal to amend the light source category LR4. This proposal relates to document GRE/2018/49 proposing to amend UN R128 in relation to the 1 min/30 min ratio. The change to UN R128 would affect the requirements of the LR4 category which is not its intention. Therefore, the present proposal modifies the category sheet of LR4 in order to maintain the current requirements for the LR4 standard light sources.

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”.

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 a new category sheet PY21W/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.);
4. a draft proposal to IEC concerning the cap/holder system of the LED light source category PY21W/LED, for information to GRE (GRE-80-03) only, to show the interlock feature and the differences with the cap/holder system of its counterpart filament light source category PY21W; and
5. to allow under Annex 4, paragraph 1.2. a limited increase of luminous flux from 1 minute to 30 minutes within the given minimum and maximum requirements (to remove an unnecessary design restriction).