How to choose a desk lamp

How to choose a desk lamp? Lighting is an indispensable item in today's social life. A desk lamp can not only increase the brightness of the room, but also facilitate our night activities and even be used for office study. Let's take a look at how to choose a desk lamp.

How to choose a desk lamp 1 1 depends on the luminous color. When choosing, look at the color of the lamp first. Many people think white light is better, but it is not. Yellow and softer light are more suitable for eyes.

2, look at the appearance quality, you can look at the appearance quality of the desk lamp, the ideal light source is close to natural light without stroboscopic, uniform illumination and so on. For the table lamp whose appearance is too rough, it is likely to be inferior material, but also check the 3c certification certificate such as the table lamp certificate and quality inspection number.

3, look at the color temperature value, the color temperature value of the light determines whether the light is soft, of course, too low or too high. Generally, the color temperature between 4500 K and 5200 K is more suitable for students and people over 18 years old, while the table lamp with color temperature between 4000 K and 4500 K is more suitable for children, because its light is redder and softer.

4. Look at after-sales service and choose products with good after-sales service. In today's increasingly advanced new light source technology, the use and maintenance of table lamps are very important, so it is very important to choose table lamps from merchants and brands. The factory staff will give demonstrations and explanations until you fully understand and master the main points and common sense of table lamps, such as the replacement of lamps and the maintenance of common minor problems.

What are the precautions when using a desk lamp?

1, things that are easy to be burned by fire should not be near the lamp tube to prevent accidents. And when you wipe the lamp, you must remember to cut off the power before you do it. It is best not to wipe it with a dripping rag to prevent the consequences of electric shock.

2. When replacing the lamp tube of the desk lamp, you must choose the power it needs, otherwise it will shorten the service life of the desk lamp. At the same time, we must pay attention to the installation after power failure, and check whether it is really installed, so as not to suddenly fall off during use and bring hidden dangers to ourselves. Also, don't touch the lamp just after it goes out or during use to avoid being burned, and don't use the desk lamp in an environment with too high temperature.

How to choose table lamp 2 1 and low blue light?

In 20 10, at the American Ophthalmology Congress (ARVO), Dr. Danny announced the surprising investigation results of ophthalmologists: most of the lighting lamps in the market contain "blue light" harmful to the eyeball. Reading under harmful blue light for a long time can lead to myopia, computer syndrome, cataract and even blindness! The doctor reminded that "blue light" is more harmful to children's eyeballs!

What is blue light?

Blue light (HEV) is a kind of high-energy visible light, which can directly penetrate the cornea and lens, reach the macula, accelerate the oxidation of cells in the macula, and cause photochemical damage to the retina. Blue light (HEV) is more harmful to children's retina. Moreover, blue light (HEV) is ubiquitous and exists in daily life. The sun, fluorescent tubes, computers and liquid crystal displays all contain blue light (HEV).

If you are worried about the problem of "blue light exceeding the standard" in the purchased LED lamps or other electrical appliances, you can judge whether the blue light of LED lamps exceeds the standard according to "People's Republic of China (PRC) GB/T 20145-2006/CIE S 009/E: 2002 (Photobiological Safety of Lamps and Lamp Systems)", which gives the specific spatial perspective of blue light.

Generally speaking, blue light exceeding 0.2 is considered as high blue light.

So when buying a desk lamp, you must choose a lamp with low blue light.

2, no stroboscopic

Strobe can easily cause vision fatigue, dizziness, eye discomfort and mild symptoms, and may also cause serious problems such as headache and vision loss.

The most direct way to check whether there is strobe is to turn on the camera of the mobile phone and aim at the light source of the desk lamp. If there is no flashing dark line on the screen of the mobile phone, it means that there is no strobe, and the dark line flows happily, so the more serious the strobe is.

Step 3: Soft light

What is soft light? On weekdays, the color temperature of the sunlight we see is about 5600K, which is similar to the direct sunlight at noon, but for desktop reading, it is too high and white, and the eyes are easily tired.

The best light is 1-2 hours after sunrise, and the color temperature is about 4,000-5,000 k. The light in this color temperature range is comfortable and soft, which is very suitable for reading and writing. Generally speaking, if you want to choose a slightly higher color temperature in this range, you need to choose a relatively lower color temperature when writing.

4, illuminance and lighting range

Detection of desk lamp illumination: the best visual light environment is when the illumination from the center of light source to the height of 400mm of reading and writing table is 750- 1500 Lx. Generally speaking, simply from the illumination value, the table lamp below 500LX is unqualified, and its illumination brightness is low, so it cannot be used as reading and writing illumination.

Lighting range, that is, the area where the lamp light shines. Generally, the irradiation range of a desk lamp is about 55cm, which is not enough for students to read or write, depending on the size of the magazine. If the irradiation range is too low, it will easily lead to problems such as sitting posture, hunchback and myopia.

Generally speaking, in order to create a good and comfortable lighting environment for reading and writing, the illumination range of a desk lamp should not be less than the size of two books, so that people can read and write at the most comfortable height.

Ergonomically speaking, the light of ring light source is most suitable for reading, and the light source distribution design of 16:9 is most suitable for the visual proportion of human eyes.

5, 3C certification

National certification requirements: the study desk lamp must pass the national compulsory 3C certification and be within the validity period.

Children are our future, so we should learn to be rational when taking care of them. In fact, every child is born with a blank sheet of paper. What environment you create for him and what you give him are influencing him imperceptibly. Please don't bring pain to children's growth because of our little negligence.

How to choose a desk lamp 3 Choose four elements of eye protection desk lamp:

1, illuminance: the brightness of light should be moderate;

2, lighting color: the lighting should be clear, the closer to the sun, the clearer you can see;

3, stroboscopic: no stroboscopic or large stroboscopic, which can reduce the damage to the eyes;

4. Ultraviolet rays: The stronger ultraviolet rays are, the more harmful they are to our eyes.

Five major inspections of purchasing desk lamps

1, check the lights

When shopping, we should first look at whether the lights of the desk lamp are stable and evenly distributed after being turned on. When choosing a desk lamp, it is best to choose one with a lampshade, which can soften the light and play a protective role. For example, some lampshades are equipped with grid reflectors, which is beneficial to the contrast between the inside and outside of the lighting area.

Step 2 check the file

Check whether the product has 3C compulsory certification, safety certification and product certificate when purchasing, which are all important guarantees for product quality.

Step 3 check after-sales service

It is also important for its after-sales service. When we look at the products, we should also know whether there is after-sales guarantee, perfect after-sales service, detailed maintenance address and telephone number.

4, check the lamp holder

We should choose a lamp holder with a standard interface, so that even if the bulb is damaged or fails, we can easily replace and maintain it later.

5, the brightness should be moderate

The desk lamp only serves as an auxiliary light source. Too bright or too dark is harmful to our eyes, so proper lighting can better protect our eyes. If it is a children's desk lamp, this should be paid more attention to. In addition, when purchasing, we must be careful not to buy bare tubes, which is likely to have certain security risks.