A few watts of eye protection desk lamp is most suitable for students. Students can't stay up late to study, so a desk lamp becomes an indispensable existence. It has a very serious effect on vision for a long time. Nowadays, many families equip their children with eye protection lights. So, how many watts of student eye protection lamp is the best?
How many watts is the best for student eye protection desk lamp? 1 Primary school students: If they are primary school students, use about 6 watts or 7 watts. Too bright light will put pressure on children's eyes.
High school students: If you are a high school student, you need a study lamp, about 13 watts. Too bright will affect normal study and cause a certain burden on the eyes. The wattage of the desk lamp is too low, the light source is not concentrated, and the eyes are easily tired.
College students: If they are college students, they generally don't pay much attention to the wattage of desk lamps, but they pay special attention to the style and design of desk lamps, and lighting is the second. Of course, it depends on the degree of lighting, as long as it is bright. At night, you can see the road clearly and read the words clearly, and you won't be tired. Control at 13 watt to about 20 watt.
What kind of desk lamp should students use?
1. As the myopia rate of students is getting higher and higher, protecting eyesight has become a topic that most parents pay more and more attention to. When students use eye protection desk lamps, they often pay attention not to its price, but to its eye protection function. Common student eye protection desk lamps in the market are divided into high-frequency flashing and non-high-frequency flashing, and the eyes grow and develop under natural light. For people, the reading light source is natural light around 10 am, and the working principle of the student eye protection desk lamp is to increase the low-frequency flash to the high-frequency flash.
2. The color temperature of the student eye protection desk lamp simply refers to the light color emitted by the lamp tube, which is suitable for reading and writing environment. But the common color temperatures in daily life are 6400K and 2700K. The color temperature of 6400K is suitable for general public places, such as * * * enjoying the toilet. Light color is pale and slightly blue. It should be noted that the color temperatures of 6400K and 2700 K are not suitable for reading and writing environment.
Color temperature and brightness can be adjusted+intelligent dimming
Different color temperatures and appropriate brightness are suitable for different scenes. For example, at the color temperature of 5000-6000k, it can improve learning and memory, and is suitable for children to read books and do homework in class; At 4000 k, it can make children concentrate and can be used for online classes or screen reading; Warm yellow light around 3000k is suitable for children to read before going to bed. Therefore, it is recommended to buy a table lamp in the range of 3000 K-5500 K.
As for the brightness, there is another problem in choosing a desk lamp with adjustable brightness, that is, it is not easy for the naked eye to judge what kind of brightness is the most suitable, but parents don't have to worry about this. At present, there are desk lamps with preset scene lighting function on the market, and even some desk lamps can adjust the brightness of light in real time according to the surrounding environment under the preset lighting mode. If there is demand, just buy this one directly.
How many watts is the best for student eye protection desk lamp? 2. Wattage selection
Many parents think that light is white and strong. In fact, reading, reading and studying under strong light for a long time will cause eye fatigue and affect children's vision health. A better energy-saving study desk lamp is 15W or 10W, which need not be too bright. If only the light could be adjusted.
Second, the choice of eye protection
Protecting eyesight is a topic that many people pay attention to, so in the use of student-specific eye protection desk lamp, people often pay attention not to its price but to its eye protection function. In the market, students' eye protection desk lamps are usually divided into high-frequency flashing and no-frequency flashing. Eyes grow in natural light. For people, the reading light source is natural light around 10 am. The working principle of the student-specific eye protection desk lamp is to improve the low-frequency flash to the high-frequency flash.
Third, there are many kinds of desk lamps for age selection. These kinds of student desk lamps are also suitable for different ages.
If you are a high school student, choosing a 13 watt desk lamp is almost enough. Too bright will affect the usual study and cause a certain burden on the eyes. The wattage of the desk lamp is too low, the light source is not focused, and the eyes are easily tired. College students generally don't care too much about the wattage of the desk lamp when buying it, but they will pay special attention to the style and design of the desk lamp, and lighting is the second. The wattage of college students' desk lamps should be controlled at 13 watts to about 20 watts.
Fourth, the height of the lamp arm-the growth of children
The arm height of eye protection lamp seems to be a factor that people seldom pay attention to.
When your eyes are 30 cm away from the book, you can see the handwriting clearly and you won't be too tired. Based on this calculation, the height distance of the eye protection lamp is 40-50 cm, which not only ensures sufficient reading illumination, but also has a certain brightness in the surrounding environment. Whether the height of the desk lamp is too high or too low, it will do harm to the eyes.
The height of the child is changing, and the height of the lamp holder should be adjusted accordingly. Therefore, when choosing the student eye protection desk lamp, try to choose a desk lamp with adjustable height, so that parents can adjust the height of the light source according to the height of the table and the height of the child, and give the child a good eye environment.
How many watts is the best for student eye protection desk lamp? 3 How to choose the student eye protection desk lamp?
1, no blue light, strobe hazard.
The component of blue light is ubiquitous in various light sources. The harm of blue light to human eyes is well known, and so is the harm of strongpoint. Especially for underage children, the lens is much clearer than that of adults, and the retina is more vulnerable to blue light stroboscopic damage. The best way is to choose an eye protection desk lamp with authoritative certification, so as to get protection.
2. Lighting
Illuminance refers to the range and uniformity of light brightness of a lamp. Students study in poor lighting, which is easy to cause visual fatigue and affect their eyesight. This is also what experts say: low brightness light is the direct culprit leading to myopia.
The performance requirements for reading and writing desk lamps issued in 2008 put forward specific requirements: the light source is the center, the measuring range is 30 cm and 50 cm respectively, and the illuminance should reach 150Lux and 250Lux respectively. The illuminance of table lamps on the market can be judged by looking at Class A or AA: AA> A. 。
The illumination of AA level can be simply understood as the illumination is not less than 250 Lux and the uniformity is less than 3 within the illumination range of 2500px. For example, there are desk lamps designed according to ergonomics on the market. The lighting area of this desk lamp is an ellipse of 120 cm, and the brightness of the area reaches 300 Lux, and the uniformity is about 2. This is completely in line with AA lighting.
Step 3 glare
Glare, in short, refers to dazzling light. Excellent eye protection lamp can reduce glare through the design of the desk lamp itself. For example, use a diffuser to make the light uniform, soft and low glare. Parents can pay attention to these small details when purchasing student desk lamps.
4. Color rendering
Color rendering index refers to the authenticity of the color of an object under the illumination of a light source. The higher the index, the more realistic the color reproduction of the object, which is also an important consideration for us to choose eye protection lamps.
If you want to do something that requires high color, such as painting under a desk lamp, it is recommended that the color rendering index of the eye protection lamp you choose should reach at least 90.