LED lamps are becoming more and more popular with consumers and are gradually replacing outdated models of lighting devices from the market. However, despite the undoubted benefits, discussions are still ongoing about their harm to the user's health. The article provides a brief analysis of the harmful effects of Led lamps and ways to avoid these undesirable phenomena.
Advantages and disadvantages
Let's start by considering the positive qualities of LED emitters, which are manifested in the following:
- Efficiency (according to this indicator, they are 3-5 times superior to conventional incandescent bulbs).
- Long service life, averaging at least 30,000 hours in resource terms (for comparison, a conventional device has an order of magnitude lower).
- Safety of use.
Note: Led lamps do not contain toxic substances, and the plastic bulb does not pose a threat when broken.
The negative sides include the danger associated with the effect of the radiation spectrum on the user's eyes and the effect of flickering (pulsation) of the light beam. This negative is especially pronounced in a situation when the manufacturer uses low-quality components or ill-conceived design solutions.
Danger to humans
The intrinsic light spectrum formed by such a lamp is formed due to the emission of e / m waves by the LED with a length of about 470 nm (this corresponds to blue light).
The phosphor applied to the reflector converts it to a visible white tint. In addition, it is important to take into account the color temperature of the lamp (the higher it is, the more tiring the radiation is for the eyes).
Vision
The retina of the eye is very sensitive to blue light, so prolonged exposure can cause its degradation. This is especially true for children's vision, which is at the stage of formation. There are a number of precautions to take before purchasing an LED bulb. It is possible to reduce the negative impact of blue light by using LED products, which, according to the passport, have a color rendering index of about 2700-3200 K.
Nervous system
Flickering of an LED with a frequency that is insensitive to the eyes (20-100 Hz), however, has a depressing effect on the human psyche. In accordance with sanitary standards for home conditions, it is preferable to use products with a pulsation index up to 10 percent This coefficient can be achieved only if a high-quality driver. And it is not cheap, like the entire purchased product.
Suppression of melatonin
Many users notice that if they stay in a room with bright LED lighting for a long time, they can hardly fall asleep in the evening. Some medical professionals argue that such light blocks the production of an important hormone, melatonin. They advise not to be in a room with bright LED lighting just before bed.