In the past, we came home from primary school and finished our homework before sunset. After dinner in the evening, we mainly go out to play games with friends. Nowadays, it is normal for children to go home from school to do their homework every day and work late at night.
Many parents choose to buy reading and writing lamps for their children. When parents buy reading and writing desk lamps online or in physical stores, they will find that the selling point of many desk lamps is eye protection. Salespeople will tell parents that the lighting of this lamp can protect children's eyes and prevent myopia.
Many parents use this as a selling point to buy their children home, but can eye protection lamps really protect their eyes?
20201October 4th CCTV Weekly Quality Report reported the quality problems of reading and writing desk lamps.
73 kinds of desk lamps, 5 1, all have problems in one way or another.
For example, some signs are incomplete, the number of LED light sources is not marked, and the power is not marked. It is equivalent to buying a food. How many grams is not marked on this food? What are the main raw materials?
The test is based on the performance requirements of reading and writing desk lamps.
Many parents buy eye protection lights for their children, but the test results show that these eye protection lights hurt their eyes:
One or two desk lamps are too shaded.
Wei Song, OSRAM's shading performance exceeds the standard. We suggest that children should have lampshades when using desk lamps. The main function of lampshade is to prevent the light from being too strong, irritating the eyes and affecting the comfort.
The desk lamp with excessive shading will make children feel uncomfortable after using it, which is easy to make their eyes tired and nearsighted.
When you buy a desk lamp for your child, you must have a lampshade. Never expose the light bulb to the outside.
Second, the illumination of 45 desk lamps is uneven.
When the desk lamp is in use, if the illumination is uneven, some places will be brighter and some places will be darker. Children's eyes need to be adjusted when they see brighter and darker places.
The uneven illumination of the desk lamp will cause children to constantly adjust the lenses of their eyes when they look at things, and their eyes are easy to get tired.
If the light is insufficient, it will be very dark, and the child can't see clearly, and his eyes will look closely, which will affect his vision.
Brands such as Philips, Osram, Good Vision, Midea and Haier have not met the minimum A-level requirements.
Third, the color temperature of 24 models is higher than 4000 K.
According to relevant standards, the color temperature of LED light source should not be higher than 4000k for a long time, and the light around 4000k will be softer and yellowish, which is more suitable for children's reading and writing assignments.
The color temperature of the sun is around 6000k K K. If the color temperature is too high, it will be dazzling and uncomfortable for the eyes.
Generally, the higher the color temperature, the whiter, bluer and more dazzling the light. When parents buy reading and writing desk lamps for their children, if the color can be adjusted, try to adjust to the warm color of orange, so that the color temperature will be lower and the visual comfort of children will be higher.
The color rendering index of paragraphs 4 and 9 is too low.
Technical Requirements for LED Indoor Lighting Application stipulates that the color rendering index of light source should be greater than 80.
If the color rendering index is too low, the pattern on the book will be distorted, which will easily cause visual fatigue.
May 4th lights are flashing.
Four kinds of desk lamps, Luxli, Huada, Philips and Osram, frequently flicker seriously.
Reading and writing under such a desk lamp will make children have a headache and feel uncomfortable.
Huang Ke, director of Changzhou Standard Inspection Product Quality Inspection Co., Ltd., said that children reading and writing under this flash for a long time led to the expansion and contraction of retina and pupil, which led to visual fatigue and decreased vision of children, and even severe headaches and epilepsy.
For the specific testing situation, you can search the video of "Reading and Writing Desk Lamp for Weekly Quality Report" online.
1, don't buy one with incomplete logo.
The identification of desk lamp should indicate the type of light source, color rendering index, color temperature, manufacturer's production address, product specification, product model and Ccc certification.
2. The light is too strong when the light is turned on, so don't buy a white one.
The light is strong, white, and the general temperature will exceed 4000k, which is not conducive to children's vision health. Just like when we look at things in the sun, we will feel dazzling and our eyes will feel uncomfortable.
3. Don't buy it if you feel dazzling glare.
Turn on the desk lamp in a dark place, but I feel that the light of the desk lamp is dazzling, indicating uneven illumination. Or I feel that the light of the desk lamp is so dim that I can't read the next book clearly.
4. Look at the colorful patterns under the light, and don't buy those that are unclear.
If the color rendering index of the desk lamp is lower than 80, you will find that the color pattern under the stand lamp is distorted and can't see clearly.
If you find colorful patterns under the desk lamp, it is not recommended for parents to buy it if you are not clear.
5. It is not recommended to buy a portable rechargeable desk lamp.
There will be a battery in the mobile charging desk lamp, but the battery will affect the lighting if it is used for a long time. It is recommended to buy a plug-in desk lamp, and the experience will be better.
6. Don't buy anything shiny.
Parents can turn on the camera function of the mobile phone, turn on the desk lamp, and shoot a video at the light source of the desk lamp with the camera function of the mobile phone. If there is glare, we can see that the light source of the desk lamp in the video keeps flashing, flickering, and we will feel dizzy after seeing the video on our mobile phone.
If the desk lamp at home meets the above six conditions, it is recommended not to use it for children, but to buy it for children.
Children should not only pay attention to the desk lamp, but also pay attention to the table they use. Try not to choose shiny tables, otherwise these desktops will reflect the brightness of lamps and make children feel tired.
Many parents ask which lamps are rated as qualified in the comment area. Ma Jing specially went to Jiangsu Consumer Protection Committee official website to download the test results of 73 reading and writing lamps. After screening all the unqualified lamps, the qualified lamp is 1 1 (the above report said 12, but after all the bad lamps were removed from my table, it was 1 1).
You can see the qualified brands and models by pulling them.
Ma Jing uses Panasonic, a big brand with clear logo and qualified test.
It is suggested that children can use a color temperature of 3000K to 4000K for daily reading. If the lighting lamp can use 5000K, good color rendering is also beneficial to the development of children's vision, and children can see things more clearly.
References:
Cctv weekly quality report
China Consumer Network
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