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LED lights, or you will have a lot of student lights on **!
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It is good with a white light.
In principle, fluorescent lamps use high-frequency light to temporarily leave vision to the eyes to produce continuous white light, in fact, it is interrupted, the lower the frequency, the easier it is for the eyes to get tired, and long-term use will damage vision.
The so-called eye protection lamp is because the frequency is very high, which makes the eyes more imperceptible and achieves a relatively eye-friendly effect. The energy-saving lamps we use will try to reduce the frequency and reduce the light emitting time to achieve the purpose of saving electricity.
The working principle of incandescent lamp is to use high temperature to achieve the purpose of emitting light, so the light source is continuous, very close to natural light sources such as the sun, as long as the brightness is enough, it should have no effect on vision. Due to the child's learning time, long-term use will have a certain impact on vision.
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It is best to use eye protection lamps, such as Mingda, Babyshibao and other brands, and do not use miscellaneous brands. And the eye protection lamp should be placed in front of the child's left side is the best.
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Go to the supermarket and buy an eye lamp for your child.
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Eye-protecting table lamp or incandescent lamp. Avoid fluorescent lamps.
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The color temperature is appropriate, I bought Angel's for my daughter, the one that costs more than 200 yuan, and it is used to write homework at night, and the dried red leaves are very good.
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How many watts of indoor lights are suitable for reading: Most of the lights in general living rooms are hung on the ceiling, and 40w fluorescent lamps or 60w bulbs can be used for lighting in daily life. Usually 2 watts per square meter of lighting in the bathroom is sufficient; 3 watts per square meter is enough for dining rooms and kitchens; The study and living room are larger, with 4 watts per square meter; Lamps on desks and bedside tables can be made with bulbs of 15 to 60 watts, preferably no more than 60 watts.
The bedroom shouts that the room is 40 to 50 watts left and right, 40 watts in the study, 60 to 80 watts in the living room, about 20 watts in the bathroom, and 30 watts in the kitchen.
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Reading books, I think it will be better to use a desk lamp, because there is a table lamp, his light can directly shine on the book, then the light is more sufficient, if you use a lamp hanging on the roof, then there will be more or less shortcomings, more or less will have an impact on eyesight, so I think it is better to use a desk lamp for reading.
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Hello friends, if it is for reading books, it will be better to use a desk lamp, the light of the table lamp is more concentrated, and the light of the lamp is more distributed, so it is better to use a desk lamp for reading.
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When reading at night, you should turn on the desk lamp and indoor lamp.
Children reading in too strong or dim light are not good for their eyes. The ideal lighting should look like this:
2) Desk lamp style: It is best to choose a table lamp style that does not directly irradiate children's eyes and is fixed.
3) Desk lamp brightness: The table lamp can use a 40 watt bulb or a 20 watt fluorescent lamp to achieve a illumination of 400-700 lux.
4) Reduce light and dark differences: When children are studying, they should not only turn on the table lamp, but also turn on the lights in the room, which can reduce the adverse effects of light and dark on the eyes.
Please adopt, thank you.
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It is better to use a desk lamp, which can be adjusted to a suitable angle, so that the brightness of the light is suitable for reading, and it is not easy to use eye fatigue.
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The table lamp is good, but the light color of the hanging lamp is too bright.
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What lamps should I choose for my study? Which can protect the eyes.
A correct choice of lamps and lanterns can give us a good learning atmosphere, but also to protect our eyes from harm, in the study we first have to choose the right lamps, so what lamps and lanterns to choose in the study? What can protect the eyes?
From the book, we can find unknown answers, see nature can also appreciate the beauty of mountains and rivers, take us to see these must need a lamp, so what kind of lamps and lanterns to choose in the study?
The selection of lamps and lanterns in the study room should be suitable for the nature of the work and the needs of learning. It is more suitable to choose a direct type table lamp with a reflective cover and a lower opening, and the light source of the table lamp is more commonly used incandescent lamp and fluorescent lamp. The color rendering index of incandescent lamps is relatively high, and the luminous efficiency of fluorescent lamps is relatively high, and they have their own advantages, and they can choose the lamps and lanterns to use according to their preferences.
The height and brightness of the lighting in the study are very important. It is better to use incandescent lamps for table lamps, and the wattage selection is about 60w, if it is too dark, it is harmful to eye health, and too bright and dazzling is not good for eyes.
In addition, the size and height of the desk and table are more important, and the size of the table can be determined according to the range of motion of the hand and the needs of the work. Therefore, when purchasing study lamps, we should not only consider the effect of decoration, but also consider the function and rationality of lighting.
The incandescent lamp used on the desk should not be too strong, and the position of the lamp should be in front of the left, so as to avoid glare and protect eyesight. Secondly, the position of the lampshade also needs to be adjusted to the most appropriate position, the distance between the human eye and the lamp should be about 40cm, the horizontal distance from the light source is about 60cm, and the inside of the lampshade can not be seen, the lower part of the lampshade is best flush with the eyes or lower than the eye, do not let the light shine directly or reflect into the human eye.
Seeing the choice of lamps and lanterns in the study, we can not only choose for the sake of beauty, but also from the position of protecting the eyes, so which ones are beneficial to the eyes?
From the perspective of eye protection, ordinary fluorescent lamps can be used for large-area lighting in the study, because the efficiency of fluorescent lamps is higher than that of incandescent lamps, that is to say, fluorescent lamps are much brighter than incandescent lamps with the same power;
As for the lamp used for local lighting on the desk and computer desk, that is, the lamp used to read and write, it is recommended to use a small fluorescent lamp of the electronic ballast type or an energy-saving lamp, because the working frequency of the lamp with electronic ballast (the actual working principle is similar to that of the fluorescent lamp) or the working frequency of the energy-saving lamp is much higher than the frequency of the ordinary 220V alternating current, and the current with such a high frequency to light the lamp eliminates the "strobe effect" of the human eye on the 50Hz alternating current, which is good for protecting the eyes.
Generally speaking, the table lamp on the table, if you use a small fluorescent lamp or an energy-saving lamp, its power is between 13w-20w, which is enough to be very energy-saving, and if you use an ordinary incandescent bulb, the brightness of 40w is not comfortable. White is the best color issue, because only pure white does not change the color of the environment and the object itself.
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Clause. 1. The brightness of the light, generally speaking, the normal light brightness under reading conditions should reach more than 300lx, while the ordinary indoor lighting is generally only 100lx, so the desk lamp should be used when reading at night to increase the brightness of the light. From the subjective point of view, when reading, you must feel that the book is very brightly lit, which can meet the standard.
Clause. Second, the color temperature of the light, the higher the color temperature, the closer to the hue of daylight, it is usually not easy to cause eye fatigue, around 4000-6000K is better.
Clause. 3. The flickering frequency of light, the higher the flickering frequency, the less likely it is to cause eye fatigue, and it is better for the eyes. The flickering frequency of ordinary incandescent lamps is 50Hz, while the flickering frequency of table lamps with eye-protecting effect can be as high as 100kHz.
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It is suitable for reading, writing and other visual operations with high requirementsIt should be a fluorescent lamp with a high color temperature of 500lx (meter candle) or more。Therefore, parents of students should choose cold light source lighting fixtures with high color temperature when choosing lighting fixtures, and use less or no incandescent lamps with low color temperature.
Many students tend to do their homework in their rooms at night, only turn on the lamp, and turn off all the lights around them to create a quiet atmosphere or save electricity. It is also not advisable to do so. Because people usually focus on the lighting on the desk, thinking that the light is bright enough to see clearly, and ignore the setting of ambient light and the impact on the eyes.
Experiments have found that only turning on the table lamp without ambient lighting or the ambient lighting is too dim is easy to exacerbate visual fatigue. Especially in the case of frequent eye movements such as copying and operating a computer, the environment must not be too dark, otherwise the eyes need to adjust frequently to adapt to the changes in light and dark. In the same way, many families now watch TV at night, and they also need a certain background light to provide the ambient brightness of the eyes, so as not to damage the health of vision in order to save electricity.
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What kind of light to use to protect your eyes when reading at night, this is the kind of table lamp for children, it's okay, how a little, but it doesn't hurt your eyes.
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The most common lights used by people when reading are fluorescent lamps, light bulbs and yellow sun lamps. In principle, readers should sit in a good posture and have good reading habits; Then, according to personal habits, no matter which color of light you choose, it will not cause great damage to your eyes. It is best not to read for more than two hours in a row, and it is best to choose to get up early to read and write.
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Use light lamps, light bulbs and yellow sun lamps when reading. Regardless of the color of the light, it will not cause great damage to the eyes. Don't read a book for more than two hours in a row, it's best to choose to read and write in the morning.
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Reading at night, lighting bulbs, choose a refresh rate of at least 100hz, the sun's strobe is 100hz, so that the eyes do not flash. The brightness should be enough, but not dazzling, it is best to turn on the headlights, small light sources such as table lamps, which are more dazzling and make eyes tired.
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Use LED lights to read books at night, such lights can protect your eyes. The premise is that the eyes are at a certain distance from the book.
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