Today's life is hard to imagine without LEDs: they are found everywhere. Despite their popularity, people still have not decided whether LED lamps are dangerous or harmless to human vision. Today I decided to talk about all the harmful properties of LEDs, because forewarned is forearmed.
Pros of using LEDs indoors
LED lamps have certain advantages, and they must be said about them first.
- At first, LED lamps are distinguished by their economy. If we compare them with ordinary incandescent lamps, the efficiency of LEDs will be several times higher. Since the cost of a kilowatt is regularly increasing, people are trying to save on lighting.
- Secondly, manufacturers assure that high-quality LED lamps can work up to 30 thousand hours. Again, I would like to return to the incandescent lamp, the operating time of which rarely exceeds 1 thousand hours.
Thirdly, LEDs are of a safe design. Many LED lamps have a plastic diffuser. Needless to say, plastic shards are safer than glass.
We are done with the merits, it's time to move on to the disadvantages
- 1. The first and main thing that I would like to highlight is the negative impact of LEDs on the human eye.
If the correct technology was not followed in the manufacture of LED lamps (or an outdated one was used), the risk that LEDs negatively affect your vision is very high.
- 2. Also, in some cases, LED lamps are characterized by increased ripple. This factor is explained by the use of low-quality parts in the manufacture of lamps.
Some unscrupulous manufacturers are trying to save as much as possible on their product. As a result, lamps with defective frequency converters enter the market. In addition, many of them have a bridge rectifier with ripple up to 100 Hz.
The human eye is unable to perceive such a frequency. As a result, both vision and psychophysical state of a person suffer.
I do not recommend buying LED lamps at random. Their choice must be approached very carefully and carefully.
How to find the safest LED bulbs
To minimize the risk of negative consequences after prolonged use of LED lamps, I advise you to use the tips below.
1. Color temperature. It is advisable to stop the choice on lamps that emit natural warm light (from 2700 to 3300 K). The intensity of LED radiation in the blue spectrum depends on the value of this parameter.
If the eyes are regularly exposed to LED lamps with an increased proportion of blue light, then vision will gradually begin to decline.
Separately, it should be said about children, whose eyes are even more sensitive. In the rooms where kids spend the most time, it is not advisable to install LEDs. It is better to choose halogen lamps or "Ilyich" lamps.
For a similar reason, it is not recommended to use LED lamps with a light transmission temperature exceeding 3300 K in bedrooms. If you sit under the bright light of LED lamps for too long, it will be much more difficult to fall asleep later.
2. Flicker frequency. When this figure lies in the range of 8 - 300 Hz, the human nervous system suffers greatly. There are certain norms that establish that in premises intended for human habitation, the ripple coefficient should be less than or equal to 10%. This criterion is found only in very high quality LEDs.
To summarize: if you decide to buy an LED lamp, rate its quality first of all, not the price. It is better to purchase LEDs from trusted specialized stores.
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