The daylight lamp promotes well-being in winter. Its aesthetically pleasing design, thanks to LED technology, fits into any room. When the duration of sunlight noticeably decreases in autumn and people tend to stay indoors more during the winter months, symptoms of light deficiency can occur. These are often referred to as winter depression. In the medical field, daylight lamps like the TL 90 are used in light therapy to combat light deficiency symptoms.