10. (b) Work progress of the International Automotive Lighting and Light Signalling Expert Group (GTB) task forces
linked to UN R37 Filament Lamps
53. GRE took note of a status report of the GTB Working Group on Light Sources (GRE-73-24), including the outcome of the GTB LED retrofit feasibility study. Some LED retrofit samples were showcased to demonstrate the equivalence criteria.
Activities of the GTB Working Group on Light Sources
Reference Number: GRE-73-24
Presentation on activities, especially LED retrofit study.