Now labels will have to include an access code to allow consumers to be able to access a database with all information about the product.

According to the Energy Agency, lightbulbs will continue to be classified on a scale from A to G, abandoning the “+” classes, which made it “more difficult to differentiate between products”.

A QR code that allows access to a database with information on all the technical characteristics of the product is also included.

"In the case of light sources, this includes information about colour (warm white, neutral white, cool white), attenuation capability, average lifespan, as well as other features on lighting quality, including colour reproduction and flicker".

The alteration in labelling follows changes in March for some household appliances including refrigeration appliances, washing machines, dishwashers and televisions.

The energy label was adopted in 1994, within the scope of the objectives of the European Union (EU) in terms of energy and climate, to promote energy saving and the consequent reduction in costs for consumers.