Don't buy this eye-protecting table lamp!2024 pit avoidance guide
Background: My daughter has been studying with the chandelier in her room from kindergarten to the third grade of elementary school. A few days ago, I watched cartoons and sat in front of the TV, saying that this way I could see clearly. I took the child and her mother to the eye hospital for a check, and found that the child had myopia of 300 degrees. The doctor told her mother that she didn't care too much about the child's eye hygiene.
Ask us: Do you usually let your children play with their mobile phones?
Didn't you use an eye-protecting desk lamp for your child?
Did you not tell your children to wash their hands when you came back from going out?......
Fatal questions made me embarrassed with her mother.
But in addition to the eye-protecting table lamp.
We can do this with mobile phones and hand washing.
If you think about it carefully, I have never thought about buying an eye-protecting table lamp for my child.
Think how can he be short-sighted at such a young age?
I hurriedly asked the doctor, is there anything I need to pay attention to when choosing an eye protection table lamp?
Today, I will share with you what the doctor told me at that time.
I hope to help you who are worried about choosing an eye protection desk lamp in front of the screen.
The doctor shared it with me.
Don't buy about this eye-protecting table lamp!
1. Don't buy those that are not exempt.
Specific wavelengths of blue light can penetrate the lens and cause irreversible damage to the eye.
According to the mainland [GB/T 9473-2022 performance requirements for desk lamps for reading and writing operations] standard.
(hereinafter collectively referred to as the Standards)
RG0 is exempt and safe.
In addition, there are RG1 (low-risk), RG2 (medium-risk), and RG3 (high-risk).
Therefore, be sure to choose an RG0 eye-friendly table lamp.
2. Don't buy if the color temperature is too high or too low.
We all know that table lamps are now multi-colored and adjustable.
Cold light with a color temperature that is too high will improve concentration though.
But for a long time under a high color temperature light source.
It can cause eye fatigue and dry eyes.
And warm light with a color temperature that is too low can make people unable to concentrate.
Drowsiness and napping are common.
If the color temperature is too low, the target cannot be seen clearly, and the eye muscles will work extra hard.
This can also lead to eye problems.
According to the [Standards].
The color temperature of the eye-protecting table lamp is 4000K.
3. Don't buy those with low color rendering
Color rendering refers to the degree to which an object is restored under a light source.
Based on sunlight, the higher the color rendering, the better.
According to the [Standards].
Generally, the color rendering index Ra should not be less than 80.
For products with LED light sources, the color rendering index R9 should be greater than 0.
Throughout the current market, all eye-protecting table lamps are basically LED type.
Therefore, it is necessary to pay more attention to the R9 index.
Fourth, do not buy the illumination uniformity that is too high or too low
Before talking about illuminance uniformity.
Let's start with illuminance.
Illuminance can actually be said to be brightness, or the degree to which an object is illuminated.
Whereas, uniformity is the ratio of the maximum value of illuminance to the minimum value.
It's not okay to have this ratio too high or too low.
There is a reference standard, namely:
The closer to 1 is the better the uniformity.
According to the [Standards].
Photometric requirements are divided into Class A and Class AA.
The latter is preferred.
Fifth, don't buy those with too many features
There are a variety of eye-protecting table lamps on the market now.
In addition to the eye protection function, there are more functions such as teaching children to read and write, voice control, etc.
Merchants strive to create a multi-functional table lamp.
But the multi-functional is good, right?
The doctor said.
He has been in contact with many children who are nearsighted.
It is understood that the table lamps they use are not low in price and have complete functions.
An eye-protecting table lamp has done so much, in addition to the child's own eye factors, why does it still have myopia at a young age?
It is already difficult to focus on the eye protection effect of the eye protection table lamp.
And add some so-called useful features to this.
Pick and choose, and forget the most important eye protection function.
Therefore, when choosing an eye-friendly desk lamp, it is not necessarily the best to have many functions.
Good eye protection is the king!
To sum up, it is the key elements to pay attention to when buying an eye-protecting table lamp.
Finally, I would like to say that during the critical period when children develop good habits.
As parents, we must pay more attention and take more precautions.
Don't cause irreversible damage to your child because of your momentary negligence.