SPECIFIC REQUIREMENTS AND TESTS. 4.1. UV-radiation
SPECIFIC REQUIREMENTS AND TESTS. 4.1. Colour rendering
4.1.1. Red content In addition to measurements as described in paragraph 7. of this Regulation: The minimum red content of the light of a LED module or headlamp incorporating LED module(s) tested at 50 V shall be such that: kred = ∫Ee (λ) V(λ) dλ ∫Ee (λ) V(λ) dλ ≥ 0.05 where: Ee(λ) (unit: W) is the spectral distribution of the irradiance; V(λ) (unit: 1) is the spectral luminous efficiency;
