The Sun lamp has also been called a phototherapy lamp, and it is a device that mimics the light you would get if you were outdoors. It is usually used to improve mood and reduce anxiety.
The key is that the light enters your eyes INDIRECTLY, under no circumstances should you direct the light directly into your eyes. You should put the lamp on a table nearby and place your face about 16 - 24 inches away. Position your face so that you do not look directly at the light.
Sun lamps have a positive effect on some neurotransmitters, related to mood regulation and sleep/wake cycles, specifically serotonin and norepinephrine.
Daily (it’s better if you use it at the same time, ideally in the mornings)
During the morning or afternoon hours
Since they do not emit UV radiation, sun lamps are considered quite safe. However, some mild side effects may occur, such as headaches, eye fatigue and nausea. On the other hand, if you have a mood disorder, it is best to consult a specialist about using sun lamps.