Energy class is a parameter that determines the power consumption of an appliance in accordance with EU directives. It indicates the efficiency and economy of the product, so you can choose the electrical appliance that best suits your needs.
The energy efficiency of artificial lighting depends on a number of factors that determine the characteristics of the lighting equipment used and the features of the objects to be illuminated. In the case of interior lighting, it is the degree of use of natural daylight, the interior layout, the color and texture of walls, ceilings and furnishings, and the state of cleanliness of the premises. The energy efficiency of lighting equipment is influenced, among other things, by the power supply systems and optical systems used in lighting fixtures. The energy efficiency of the light sources used also plays a very important role.
Energy efficiency labels
The first European Energy Labeling Directive 92/75/EC was published as early as 1992, and was implemented through application/product-specific directives. The first energy labels designated the energy classes of appliances by means of A seven-class letter scale and its assigned colors. Class A and the color green denoted the most efficient appliance with very high efficiency, while class G and the color red were the least efficient equipment with the lowest efficiency. This simple system allows consumers to easily and quickly compare the efficiency of products without even having to analyze individual parameters. The labels also provide additional market information. The commission's Directive 98/11/EC, on the energy labeling of household lighting lamps, was published in 1998. The labeling system described therein covered only household lighting and excluded certain types of reflector lamps and low-voltage lamps. Since 1992, the efficiency of many appliances has improved, and this was taken into account in the new Directive 2010/30/EU, which replaced Directive 92/75/ EC, introducing new efficiency classes: A+, A++ and A+++.