Artificial lighting is being used more and more in the world. The usage is quite non-homogeneous.
In developing countries, we can still find a widespread use of fuel based lighting but nowadays the
situation is changing and the demand for electric based lighting is growing. Electric lighting
consumes about 19% of the world total electricity use. So, we should remember and consider that
the improvement in energy efficient lighting will also be helpful for the progress in developing
countries. Every change in technologies, in customers’ consumption behaviour, even in lifestyle,
has influences on global energy consumption and indirectly, on environment. Therefore, energy
saving in lighting, and the methods of achieving this goal should be considered at different levels
(state, region, town, enterprise) and by supranational organisations, too