Substitute light sources: equivalence reports for C5W, PY21W, and R5W
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Reference Number: GRE-77-03
Origin: GTB
Date: 20 January 2017
Related Documents:
GRE-77-22 | Introduction into Regulation 128 of LED Substitute Light Sources
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.