How to choose a desk lamp for children?

At present, the study desk lamp market is very chaotic. Desk lamps ranging from ten yuan to several thousand yuan are promoting the concept of no blue light and no strobe. 2011June 5 CCTV Quality Weekly revealed that 90% of eye protection lamps have quality problems! This article can tell you some experiences in buying study lights for children.

1. Is the product safe?

It is difficult for ordinary consumers to judge whether a product is safe in electrical performance. You can go and see if it has passed 3C certification in China. Through 3C certification, it can be considered that the product is safe in electrical performance.

2. Is there any harm of electromagnetic radiation?

Electromagnetic radiation includes two aspects: EMC and EMF. Generally speaking, EMC is concerned about the influence of electromagnetic radiation between devices. EMF focuses on the influence of equipment on human electromagnetic radiation. Unfortunately, EMF is not mandatory in domestic standards.

Are EMC and EMF safe? what are you reading?

EMC can ask and confirm 3C certification. Note that all products that pass electromagnetic radiation detection at 3C have S &；; The symbol of e.

EMF can see whether the product has obtained CE certification or passed EN/IEC62493 certification. The EU uses 𧪽 to evaluate the influence of the electromagnetic field of the designer on the human body. This standard is also one of the necessary tests for obtaining CE certificate, and lighting products entering the EU must pass this test.

3. Is there a blue light hazard?

Due to the luminous principle of white LED, the proportion of blue light in LED spectrum is very high (in popular parlance), but whether it is harmful or not depends on rational analysis! Don't talk about "blue" discoloration! Because blue light is a component of sunlight spectrum, it is everywhere. So which desk lamp says "no blue light" is definitely wrong! We should make it clear that blue light is ubiquitous in desk lamps, and it accounts for more or less a part. Is it harmful? -How do consumers judge? Watch product promotion? No! (From tens of dollars to thousands of dollars, it is said that there is no blue light hazard)-The correct way is to see if the product has passed the corresponding photobiological safety test! The European Union, the International Electrotechnical Commission and China all have corresponding standards, but the standards are recommended and not enforced by manufacturers, so relatively few manufacturers implement the standards (probably because of the cost).

What are the current standards? As follows:

En 6247 1: 2006: Photobiological Safety of Lamps and Lamp Systems (EU)

⦀C624712006: Photobiological Safety of Lamps and Lamp Systems (IEC);

GB/T 20 145-2006: Photobiological Safety of Lamps and Lamp Systems (China)

The essence of these three standards is the same, with little difference (GB in China should be the standard cited by EU and IEC). Just pass one, and it is better to pass them all! What are the standards adopted? Say the important things three times! Reach the immune level! Reach the immune level! Reach the immune level! In addition, these standards also cover the testing of violet light hazard and infrared hazard, which must reach the exemption level!

4. Is there any danger of stroboscopic?

Personally, I think stroboscopic is the most harmful to the eyes! Why are the post-70s and post-80s more nearsighted than the older generation? Personally, it is related to the widespread use of fluorescent lamps, and stroboscopic hazards are serious! Is there stroboscopic hazard and how to judge it? Some people will use the camera function of their mobile phones to light up the lights. If there are stripes, it means that there are strobes, which is also correct. If the striped lamp is found by this test method, it can pass directly! If there are no stripes, is there no danger of stroboscopic? It depends on whether you have passed the corresponding standard test! The criteria are as follows:

IEEE PAR1789-2013: Potential Health Effects of LED Lighting Flashes (Institute of Electrical and Electronics Engineers)

This standard introduces the concept of "fluctuation depth" into stroboscopic, and evaluates the hazard level of stroboscopic! I won't delve into it here!

Everyone just needs to know what the standard is! -reach the level of no harm! (Say it once and remember! Don't consider what is harmful! )

The above contents are the most basic considerations for choosing a desk lamp for children! The following are the bonus items:

5. Warm white light with a color temperature less than 4000K K k.

The best is within 4000K, around 3900! Conform to the human rhythm curve! What is human rhythm? Generally speaking, people have adapted to the law of "work at sunrise and rest at sunset". The sun is yellow in the morning and its color temperature is low. At noon, the sun is white with a high color temperature; In the afternoon, the sun turned yellow again, and the color temperature was low! Therefore, it is not recommended to use high color temperature lamps at night, which does not conform to the above rules, especially for children! Night shift workers, please ignore this paragraph! )

In addition, the lamp with high color temperature has high blue light content, and the potential blue light hazard risk is great!

6. The color rendering index is greater than 90.

What is the color rendering index? By the way, have you ever bought clothes in the mall and found that the color is wrong when you wear them during the day? This is the misjudgment of color caused by low color rendering index! Imagine what would happen if your child grew up in this situation:

Teacher: What color is this?

Your child: rose red!

All children: Dahong! Dahong! Dahong!

....

Your child's future career has nothing to do with color!

7. Intelligent functions

Now is the era of mobile Internet and smart wear. Many internet giants have introduced some desk lamps with intelligent functions, such as app control, automatic dimming, sitting posture detection and myopia prevention. Help children develop some good habits of scientific eye and time management! I suggest you try actively and keep pace with the times at low cost!