Where, for technical reasons, it is impossible to define seven energy classes that correspond to significant energy and cost savings from a customer's perspective, the label may, by way of derogation from point (14) of Article 2, contain fewer classes.
I gcás ina mbeidh sé dodhéanta, ar chúiseanna teicniúla, seacht n-aicme fuinnimh a shainiú lena dtabharfaí coigilteas suntasach fuinnimh agus costais ó thaobh an chustaiméara de, féadfar níos lú aicmí a chuimsiú faoin lipéad, de mhaolú ar phointe (14) d'Airteagal 2.