The light flux regulator

Why is it necessary to regulate the luminosity?

Because if, for example, you regulate the voltage of 20% in diminution, you obtain a lower luminosity variation, that varies depending on the type of lamp, in comparison with the same voltage change.

Moreover, the human eye perceives this reduction with a ratio that approaches to the square root of the voltage value that has varied in comparison with the nominal voltage of the network (source Enea).

The distribution networks are exposed to voltage variations due to:

• the supplying company;
• • the seasonal and daily load variations;
  

These voltage fluctuations (overvoltage) are extremely critical for the lamps. They intervene negatively in the life of the lamps and they increase their ageing, therefore they compromise:

• their duration;
• the light flux supplied with the passing of time.