is efficient isn’t yellow
Energy efficiency with natural light
Windows are not just there for looking out of and into
...they can contribute significantly to improving a building’s energy efficiency.

The campaign
Daylight Initiative
At the evening for the trade press, on 1st June 2017, the positive effects of daylight on the well-being and health of humans were presented, based on previously collected data. This approach is now being taken up...

Worthy professions: Lighting designer
An overview of lighting design
Nowadays, lighting design is not only about playing with light and using it artistically, but increasingly has the aim of improving health and providing conscious illumination. As a renowned lighting designer, Prof. Peter Andres not only knows why we do so, but how.

Light, from a health professional's point of view
Anyone who sees is working hard.
Physiological studies showed that 25 percent of our energy resources are consumed through sight. Correct lighting therefore plays an important role.

Sick building syndrome
Feeling unwell at work or school
...is not always due to your boss or your maths lesson. Sometimes, a building can also make you ill.

Smart lighting technology
...in the office.
The incidence of light from outside can also be influenced by the use of “intelligent glass”. Electrochromic glass...

Biological lighting design
Nowadays, it’s not just about illuminating rooms
...it’s also about living with the right light.

Vitamin D is a beautiful thing
You know your ABC
, but what about Vitamin D? Why do we need it, and why are ever more people taking additional amounts of it?

The maximum daylight occurs at a light wavelength of around 555 nm.
Light sources at between 5300 and 6500 K are said to be “daylight lamps”.
of all burglaries occur in daylight.
is how long it takes for light to travel from the sun to Earth.
Effective: Light shower with 10,000 lux per half hour.
Daylight can increase your children’s capacity to learn by up to 15%.
of our time is spent indoors.
average sunshine hours per month in Germany