The raising luminous efficiency of the Solid State Lighting technology hasn’t been always the drive for a human friendly development as it shifted the attention of users from the quality of lighting, which was mistakenly taken for granted, to the priority of energy saving, while the higher efficiency of the new SSL technology has rather advanced a lavish behavior with regard to a rational consideration of real lighting needs.

Conversely, we, at STILVI, attach to the consideration of lighting sufficiency equal value as to the resulting energy efficiency. This is why we suggest phosphorescence aided lighting to support the experience of authentic natural nightscapes, where a respective long-term photometric documentation indicates that astronomical tourism can be well accommodated at these places.

In other words, we equally care about the numerator of the ratio of the energy efficiency according to its relevant definition in the Directive (2012/27/EU), to which belong all benefits, which derive from the energy input in the denominator of the energy efficiency ratio, whether it is the development of astronomical tourism or other benefits related to human factors and the herewith associated lighting design.

With this mindset, our energy-lighting auditing services go beyond the requirements of standards as ISO/CIE 20086:2019 with the pertinent respect for the precautions of the White Paper about Serviceable Luminaires in a Circular Economy.