What the effect does LED lighting have on our health?

What the effect does LED lighting have on our health?

What effect does light have on the human body? Light has a big impact on the human body because our biological rhythm is heavily dependent on him. Of course, here the biggest effect is sunlight, which regulates our circadian rhythm and affects the activity of the body. According to scientists, a person should stay for at least a few hours a day in the light of at least 4000 lux for the body to function properly. If the light is too low, the body produces too little vitamin D, concentration decreases, drowsiness occurs, and with longer periods of low exposure to light, depression may also occur. This, however, is not related to LED lighting only with the lack of sunlight. Artificial lighting, however, also does not remain indifferent, although its intensity is usually too low to affect our daily cycle. However, the brightness and color of artificial light can affect the mood, the ability to concentrate or the psyche of a human being. Here, however, it does not matter whether it is LED or traditional light. It's only about intensity and color (or color temperature for white light). So what can be dangerous in LED lighting? Thanks to many years of research, it turns out that as many as three threats to our eyes flow from LED lighting. But I would like to immediately correct that it is mainly about low-quality LED lighting, which is usually cheap products of unmarked manufacturers. And what are the three threats? Flicker - if the electronics controlling or powering the LEDs are of poor quality or simply badly designed, a flickering effect may appear. It can be very visible but also almost invisible or noticeable only from the corner of the eye. In any case, it causes accelerated eye fatigue, and with it may arise such ailments as burning, itching and eye pain, a feeling of heaviness in the eyelids, scars in front of eyes, dizziness, and headaches, blurred vision, difficulty in concentration, increased excitability nervous. To avoid this, therefore, it is necessary to use high-quality LED power and control devices and branded manufacturers. It is also important that the installation itself is made in accordance with the principles of electronics because the best devices installed incorrectly will also cause problems. Glare - LED diodes are electronic components with high luminance, i.e. very small sizes, however, emitting large amounts of light. Since the tiny point is very bright, unfortunately, it blinds us badly, which affects our eyes negatively. Therefore, it is better to use LED light sources in which the light is scattered by additional optics or is emitted by a few LEDs of lower brightness instead of one diode with very high power. The best solution is to design LED lighting so that the diodes themselves are not directly visible only to receive light reflected from or scattered over other surfaces. Unmarried manufacturers often use diodes with a very narrow-angle of light to theoretically raise the brightness that can be boasted in catalog cards. Blue light - recent research has shown that long-term exposure to blue light can negatively affect photoreceptors in the retinal pigment epithelium. According to scientists from the French agency ANSES, this can lead to an acceleration of vision disease called AMD, which is associated with a macular degeneration due to age. The vast majority of white low-quality (or unbranded) LEDs emit too much of the blue component (due to the construction and poor quality of the phosphor), which can adversely affect the eyesight. Fortunately, most of the LEDs of branded manufacturers are undergoing appropriate tests and phosphors are selected so that the spectrum of light emitted by LEDs is safe for eyesight. In conclusion about the impact on eyesight, there are actually three delicate dangers to our eyesight from the LEDs, but they are really only if we use unbranded elements of low quality. It is enough to use branded products of good quality to avoid danger. It is worth remembering that even branded products can cause problems in the case of unprofessional installation, so it is also worth choosing designers and installers who have extensive knowledge and experience in the field of LED lighting.