5 small coups to easily set children's LED lighting

Is the lighter the brighter the better? What kind of light environment is good for eye health? Experts pointed out that parents, teachers, and light source manufacturers all have the responsibility to popularize the knowledge of scientific consumption of light sources, and should use non-radioactive, non-stroboscopic, energy-saving and environmentally friendly lamps that are beneficial to the health of students and lighting operators.

The safety of light environment has drawn attention: On the one hand, the incidence of myopia among young people in China has risen sharply; on the other hand, home lighting, work lighting and even outdoor lighting have caused damage to the eye health of adults. Is the lighter the brighter the better? What kind of light environment is good for eye health? Experts pointed out that parents, teachers, and light source manufacturers all have the responsibility to popularize the knowledge of scientific consumption of light sources, and should use non-radioactive, non-stroboscopic, energy-saving and environmentally friendly lamps that are beneficial to the health of students and lighting operators.

Phenomenon 1: LED light price is difficult to choose

Experts: Mo Buy 5W Bulbs Below $20

Consumers in the lighting market to buy LED indoor lights, often see confusing phenomenon: a well-known brand 4W LED bulb lamp price 40 yuan, and some unknown brands 5W LED bulb light only Sell ​​20 yuan one. Which bulb lamp should be selected in the two bulb lights? Many consumers told reporters that they tend to choose brighter LED bulbs.

Because the higher the color temperature, the higher the light efficiency, the brighter the LED interior light looks. However, in actual use, the low color temperature looks more comfortable and the corresponding cost is higher. Taking sunlight as an example, the morning and evening sunlight with a color temperature of between 3000K and 3500K looks soft. At noon, the color temperature of the sun rises to 4000K to 4500K, which is already more dazzling. The color temperature of incandescent and fluorescent lamps reached 6200K.

It is understood that the domestic manufacturers of regular light bulbs will be marked on the packaging color temperature, commonly used color temperature is 2700k, the color temperature of ordinary incandescent lamps, which is characterized by feeling warm light, but not bright enough, suitable for bedroom bedside, wall lamp, etc. Local lighting; 3000k is the closest to the natural light color temperature, is warm, light is warm and bright, suitable for the overall lighting design at home; 5000k above is white, is a cool light, can make people concentrated, suitable for office, learning and other places use.

Experts said: At present, in the lighting market, the general household LED indoor lamp power is between 3W ~ 7W, 5W bulb lamp market sales price is generally around 50 yuan, if less than 20 yuan, then the LED indoor lamp Quality is certainly a problem, not only can not play a role in protecting vision, and the life of the light source will be greatly reduced. In addition, when consumers purchase LED interior lights, they can't just look at the power of the lamps, because the LED lamps are not as bright as possible.

Phenomenon 2: The poor quality LED lamp has blue light hazard

Experts: Mo is cheap and wants to buy big brands

From incandescent lamps to energy-saving lamps to LED lights. In recent years, society has paid more attention to energy-saving lighting products than ever before. In this regard, some medical professionals and electric light source experts have pointed out that many LED lamps have serious problems of blue light overflow. Over time, the eye's retina will be subject to irreversible damage.

Is LED lighting really damaging to vision? Associate Professor Zhang Shanduan, deputy director of the Institute of Electric Light Sources at Fudan University, told the reporter: “The principle of white LEDs is that blue LED chips excite the white light formed after the conversion of yellow phosphors. Blu-ray damage refers to the fact that if the brightness of the light source is between 400 and 500 nanometers, if the brightness is too high, Eyes that look directly at the light source for a long period of time may cause photochemical damage to the retina. The degree of blue light damage depends on the amount of blue light that the human eye accumulates in the light.”

"If you buy a qualified lamp and use it properly, the LED lamp is no more dangerous than the traditional lamp." Industry sources pointed out that at present, there are more than 3,000 domestic LED lamp manufacturing enterprises, China's national standard "light and lamp system of light In the "Biosafety," a clear definition is made on the hazards of blue light and the calculation method for quantification, and it is pointed out that there is no difference between LED lighting products and other light sources, and it falls within the safe range specified by the limits of exposure radiography.

Experts said: Prof. Tong Tongsheng of the Department of Optoelectronic Engineering at Zhejiang University stated that internationally, the photobiological safety standards for blue light have been formulated according to the intensity of blue light, and the possible blue light hazard values ​​have been set. For example, a light source product that does not have a Blu-ray hazard is called a “zero product”; a product that has less blue light hazard and whose eyes cannot look directly at a light source for a long time is called “a product”; a light source that has a greater blue light hazard is called "Second category product". Currently used as the basic zero-class and one-class LED lighting, if it is the second category is forced to mark "eyes can not stare at." Therefore, when purchasing LED lamps, do not try to be cheap, try to buy a big brand of products.

Phenomenon 3: Uneven quality of eye protection

Experts: Choose to Look for 3C Marks

Table lamps are an indispensable tool for adults and children to learn and work. In order to prevent myopia, choosing a good eye protection for children has become a problem that many parents consider. According to the reporter's understanding, eye protection products on the market are dazzling, many products are advertised as "no flash" or high-tech LED lights, and the price is much higher than ordinary lamps. Can these lights not protect the child's eyes?

The reporter visited Carrefour, Guangzhou, and many other supermarkets in the lamp zone saw that half of the display lamp products were children's “eye-protection lights”. The prices of these products are uneven, the same is a table lamp, with the words "eye protection" and other words, relatively speaking, a few hundred dollars more expensive than ordinary table lamps. Some LED "eye-protection lights" are even more expensive.

The reporter observed that the desk lamp placed on the shelf did not indicate the “eye protection” function of the desk lamp. The price ranged from 80 yuan to 300 yuan. The lamp with the “eye protection” function was the cheapest, and it was 300 yuan. The expensive even 900 yuan. The reporter also found that in addition to the price difference, many "eye-safety" products do not have the relevant "3C" certification mark.

Experts said: "eye protection lamp" is currently more of a marketing concept, whether there is "sure eye" effect is uncertain, consumers in the purchase process, we must pay attention to view security certificates and instructions, the best choice for products with after-sales service, and Pay attention to the product's 3C certification mark.

Warm Tips

Children's room light source design has a coup

The study found that the long-term use of "full-brightness" lights is one of the factors leading to the high myopia rate in China. If the brightness of the lamp is much higher than the brightness of the general indoor environment, people will feel dazzled. Visible, the brightness of the lamp does not mean that the light is good, too bright will damage the retina. How can we make our children live in a relatively safe light environment? Take a look at the security measures provided by experts:

1 Different designs in different areas.

The children's room has many functions such as games, learning, and sleep. The functional areas are different, and the light requirements are also different. The light intensity and area of ​​the game area can be slightly larger. The intensity of light in the study area can be moderately concentrated. The light in the sleeping area should be as soft and warm as possible, which will help children feel safe and help them sleep.

2 Avoid uneven lighting.

One is too bright and the other is too dark. This is an unbalanced design. Therefore, in addition to the main light source, you can set some auxiliary light sources (such as wall lamps, floor lamps, desk lamps, etc.), through the strength of light, spatial location, different angles to harmonize the indoor light difference, in order to alleviate the child's eyes Fatigue and discomfort.

3 Reflect light upwards.

If you want to use indirect reflected light as ambient light, be careful to let the lamp cover reflect light upwards as much as possible without reflecting downwards. Because the downward-reflecting light source may cause direct light to the child's eyes, the child's vision may be damaged.

4 Use spotlights with caution.

If the spotlight is not used well, it can cause nervousness in the child. If you want to use a spotlight to illuminate a wall of art (such as a picture frame), you must avoid dazzling highlights. Therefore, when lighting, it is necessary to shoot from the side toward the artwork. The light comes from the side, and the dazzling bright spot will not be directly reflected on the human eye.

5 Select adjustable fixtures.

The best choice is to adjust the light and dark angles of the lamps, dim the light at night to increase the child's sense of security and help children fall asleep as soon as possible. After the child goes to sleep, he must turn off the light. Because the child sleeps under the lamp, his eyesight will be impaired, and the rate of myopia will be much higher than that of children sleeping in the dark.