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Energy Efficient Products

Can the R9 value be negative?

Yes. One entry in Table 9 of Annex XI reads “CRI and R9 [0-100]”. The 0-100 range applies only to CRI and not to R9. This is in line with the definition of light source in article 2(1), with CRI that should be >0. In EPREL it is correctly allowed to register a value in the range - 100 to +100. This may be clarified in a later amendment to the Regulation.

Disclaimer: Please note that the European Commission cannot provide a legally binding interpretation of the EU legislation, as this is the sole competence of the European Court of Justice. Any remarks from the European Commission services are without prejudice to the position the Commission might take should related cases arise in a procedure before the Court of Justice.