SOURCE-LINKED REGULATION GUIDE
UN R128 — LED light sources
Assess the LED light source as a distinct product from the approved lamp.
Explore the scopeWhat does it cover?
UN R128 concerns LED light sources defined in its annex for use in approved vehicle and trailer lamps. A light-source category identifies standardised basic design variants. Administrative provisions, technical requirements and conformity of production form the framework for approving the LED source.
Who is it for?
LED light-source manufacturers and vehicle-lamp development teams.
Which subjects are addressed?
- LED light-source categories
- Products defined in the annex
- Technical requirements
- Conformity of production
Common question
Does approval of the LED source approve the whole lamp?
No. The subject is the LED light source intended for use in approved lamps. Its assessment must be distinguished from assessment of the lamp itself.
Source documents and references
Work with this regulation in RegsUP.
Read the text with its edition and sources. Assess available comparisons, relevant dates and question-and-answer features against your work needs.
Discuss access optionsRelated regulations
UN R37 — Filament light sources
Examine the lamp’s light source by category and technical requirements.
UN R148 — Light-signalling devices
Find the relevant provision for each signalling-lamp function.
UN R149 — Road-illumination devices and systems
Explore headlamp, fog-lamp and adaptive-lighting functions within their own scopes.