Natural light or artificial light

Natural light or artificial light

In colder periods it can happen to suffer from migraines and to get sick more easily. This is not always due to low temperatures but to the greatest number of hours of darkness during the day. In particular, in winter it is late and late at night. However, working environments require dynamism and efficiency, even when natural lighting is scarce or absent. Thus, artificial light must be able to compensate for this lack by providing diffused lighting. But what exactly are the differences between natural and artificial light? How many and what artificial solutions exist?

Natural light

Natural light has a complete and dynamic spectrum. In particular, the light spectrum consists of all the colors of the rainbow. It is dynamic in that the light intensity and color temperature vary according to the time of day and it is complete because the sun emits ultraviolet and infrared radiation at various wavelengths. Thanks to the Earth's atmosphere most of this radiation is blocked.

Daylight affects not only the day-night rhythm but also our vitamin D intake. This precious vitamin is essential for our body because it allows us to absorb calcium through food. This, in turn, is important for bone formation and stability.

In addition to supplying us with vitamin D, sunlight stimulates the production of melatonin which promotes the feeling of tiredness when darkness falls. The cortisol, however, acts in the opposite way: it makes us more alert and focused during the day. Therefore, when not receiving a sufficient amount of sunlight during the day, these two hormones present in our organism malfunction. This can cause headaches, sleep disorders and even depression.

Artificial light

Artificial light is produced by LED light sources that may contain ultraviolet and infrared radiation. This does not apply to LED solutions, which do not emit any kind of radiation.

Infrared radiation produced by an artificial source does not constitute a danger for our body in minimal quantities and with due precautions. However, prolonged exposure to a close distance from artificial LED light sources can cause minor burns in a short time. In the long run, it can increase the risk of developing skin cancer. It is sufficient to think that a week of vacation in a sunny location can have the same result on a year's exposure to UV rays.

As for the traditional lamps that are commonly used in domestic environments and offices, there is still no evidence that exposure in the short term can cause eye damage. It remains certain that prolonged accidental exposure to both types of light sources can damage the retina of the eye.

Can LED solutions replace natural light?

Unfortunately, there is no artificial light source that can replace 100% of daylight. At the same time, however, artificial light sources can have a significant emotional impact through color temperature. In fact, it has been shown that certain types of LED lights can positively influence our mood and consequently our health. Daylight (<5300 K), for example, has a high amount of blue. In particular, this color favors productivity and for this reason, it is mainly used in offices.

What is the most natural LED lighting?

To get closer to the color of sunlight through artificial devices, we need to consider not only the color but also the brightness. Some LED light bulbs, allow you to adjust the color temperature according to the various lighting needs throughout the day. Specifically, more intense lighting in the morning promotes productivity and softer light in the evening stimulates relaxation.

Another important aspect of our body is the spectrum of light. A lamp with a full spectrum will never be able to reproduce natural light in the same way. Furthermore, it will not be able to bring the same health benefits of sunlight. Thus, the human organism and human activities will continue to be influenced by the day/night cycles of the sun. Click here for more information about LED lights.

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