Introduction into Regulation 128 of LED Substitute Light Sources
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Reference Number: GRE-77-22
Origin: GTB
Date: 3 April 2017
Related Documents:
GRE-77-02 | Equivalence criteria for LED substitute light source categories as equivalents for corresponding filament light source categories
GRE-77-03 | Substitute light sources: equivalence reports for C5W, PY21W, and R5W
GRE-77-07 | Request for guidance concerning proposals for road llumination devices, lighti-signalling devices, and COP for adaptive front lighting
GRE-77-15 | Proposal to introduce requirements for the use of LED substitute light sources in the new Regulation for “Light-signalling devices”
GRE/2017/2 | Proposal for Supplement 7 to the original version of Regulation No. 128
GRE/2017/3 | Proposal for amendments to the original version of the Consolidated Resolution on the common specification of light source categories
GRE/2017/4 | Proposal for a collective amendment to Regulations Nos. 48, 53, 74, and 86
Working Party on Lighting and Light-signalling | Session 77 | 4-7 Apr 2017

12. The expert from GTB presented proposals for amendments to Regulation No. 128 and to the Consolidated Resolution (R.E.5) which introduce requirements and test specifications for light emitting diode (LED) substitute light sources as well as several new LED substitute light source categories (ECE/TRANS/WP.29/GRE/2017/2, ECE/TRANS/WP.29/GRE/2017/3, GRE-77-02, GRE-77-03, GRE-77-15, GRE-77-22). These proposals were accompanied by collective amendments to Regulations Nos. 48, 53, 74, 86 with the requirements for LED substitute light sources (ECE/TRANS/WP.29/GRE/2017/4). The expert from GTB explained that the proposed approach was based on the following principles:

  • Lamps may be approved with a filament light source and its corresponding LED substitute light source, when fitting in the same holder, and providing an equivalent photometric performance;
  • Lamps equipped with LED substitute light sources should be tested with both the filament lamp and the LED substitute light source.