Nowadays, eye protection lamps have become the choice of more and more people, whether it is children with heavy academic work or white-collar workers who face computer screens every day, vision health problems should not be underestimated. A qualified eye protection lamp not only illuminates the desktop, but also needs to neutralize the light on the desktop to minimize the possible damage to the human eye.
However, it is not so simple to choose the most suitable one for yourself from a wide variety of brands and products, so there are five hot-selling eye protection lamps today, aiming to choose a qualified eye protection lamp for you.
Product analysis: about 200 yuan five hot-selling eye protection lamps
This horizontal
Test
, we selected five products from Philips, Xiaomi, Huawei Smart Selection, OPPLE and Good Vision, and the price and parameter information of the five products are as follows:
Next we will start with exterior design and practicality
Two parts, to expand this horizontal evaluation.
1. Design evaluation
Philips Xuan Yang eye protection lamp
At 100 yuan~
30
Eye protection lamps in the 0 yuan gear range are difficult to distinguish between good and bad from the appearance design or shape. Under the premise of equal appearance, which lamp provides brighter and more convenient lighting is a good product for consumers.
Philips [Xuanyang] national A-class eye protection table lamp is very user-friendly in the design of the lamp head, which can be tilted, tilted, axial rotation and horizontal sweeping. This three-dimensional rotation method does provide a better solution for the use needs of different scenarios. Of course, the connection of the lamp holder also supports angle adjustment, which is much more convenient for bedside lamps and work lights.
The brightness adjustment of the desk lamp switch adopts touch mode, and you can also slide it with your fingers. In the case of sufficient light in the office or home, turn on 1 or 2 stops to make up for the local brightness. If the surroundings are dark, turn on 3rd gear. Personal use experience, 4 levels of light is very bright, no
suggestion
Use in total darkness.
This table lamp does not have obvious distinction between cold and warm light, and the overall color is warm. In addition to the light source on the top, there are two auxiliary light sources on the back of the lamp head for auxiliary lighting. Long press [On key] to turn off the desk lamp and avoid accidental touch; As long as you light the key to light the lamp, the quality of the big factory can still be seen in the detail design.
Huawei MT428
The design of Huawei MT428 is very similar to Philips [Xuanyang], in addition to the main light source, there is also an auxiliary light source on the side, with an adjustable angle lamp head, in actual use, it can illuminate a larger desktop area.
cell phone
.APP
Control set time, etc
Three reading modes (reading, writing, computer) switch with one click
In addition to the touch design, Huawei MT428 is also equipped with:
Control function, on the mobile phone side can set the mode, brightness and timing function, adding a lot of points to the user experience.
Xiaomi Mijia LED smart eye protection light
More and more people like simple style, want to look more simple on the office table, a simple structure of eye protection lamp is the most suitable.
Mijia LED smart desk lamp also adopts a long-arm lamp head design, but only the lamp head part can rotate, and the lamp body is fixed to the lamp body.
Mijia LED smart desk lamp does not adopt touch design, but adopts knob type gear adjustment design, press and rotate can also adjust the color temperature, daily use is still very convenient.
Modern style + retro knob design, perhaps this is why Xiaomi eye protection lamps are widely praised.
OPP 22-HY-00654
Unlike several other products in the review, OPPLE 22-HY-00654 adopts a disc-type light outlet design, which has a larger luminous surface than several other products.
The lamp body is equipped with 3 hinges and the lamp head can be adjusted 360° to illuminate as much as possible.
Good vision TG168
The eye protection lamp of Good Vision also adopts a long-arm lamp head design, but its lamp head adjustment range is relatively limited compared to several other products.
In addition, this desk lamp provides users with five levels of illuminance adjustment, which users can adjust according to different usage scenarios; Three different color temperature modes are also preset to cope with different usage habits.
2. Measured part
illuminance
National standard AA illuminance standard: the illuminance should be reached within 50cm from the core area of the light
0lx, in the core area from the light
At least 500lx should be reached in the cm range.
National standard A illuminance standard: the illuminance should reach 150lx within 50cm from the core area of the light, and the illumination should reach 150lx at the core area of the light
It should be at least 250lx in the cm range.
Among the 5 eye-protection lamps tested, Huawei MT428 and OPPLE 22-HY-00654 nominal national AA-level illumination, and the remaining 4 models are nominal national A level illumination.
The nominal illuminance of OPP 22-HY-00654 is also AA level, and the measured data is as follows:
As shown in the figure, distance from the light source
The illuminance at cm and 50cm is 788.9lx and 50cm, respectively
7.2lx, in line with the national AA illuminance requirements.
The nominal illuminance of this desk lamp is national AA level, can the measured data meet this standard?
As you can see, the measured medium-distance light source
The illuminance at cm is 698.4lx and 348.5lx at 50cm, both of which exceed the provisions of the national standard for AA-level illuminance.
The nominal illuminance value of this eye protection lamp is national A grade, that is, it is at the distance of the light source
The illuminance at /50cm should reach 250/150lx, and the measured data is as follows:
In actual measurement,
The illuminance at cm is 400.2lx, the illuminance at 50cm is 141.5lx; the illuminance value at 50cm fails to reach the 150lx specified in the national standard.
The nominal illuminance of this desk lamp is national A level illuminance, and the measured data is as follows:
Distance from the light source
The CM illuminance is 359.4lx, and the illuminance is 1 at 50cm from the light source
.2lx； The illuminance value at 50cm failed to meet the requirements of 150lx in the national A standard.
Mijia LED smart desk lamp
The nominal illuminance of this eye protection lamp is national A grade,
The data is as follows:
In actual measurement, distance from the light source
The illuminance value at cm is 371.3lx, and the illuminance value at 50cm from the light source is 137.1lx; the illuminance value at 50cm fails to reach the 150lx stipulated by National A.
Among the 5 eye protection lamps tested, only two of OPPLE and Huawei reached and exceeded the nominal national AA-level illuminance value, and the remaining 4 measured values were all certain with the national A illuminance nominal value
gap
。
Simple analysis
Data we can find that after the distance from the light source exceeds 50cm, the illuminance will drop significantly. In our daily use, in addition to purchasing products that meet the national AA-level illumination as much as possible, we should also pay attention to effective adjustment so that the desk lamp can illuminate a larger desktop range and avoid the impact of insufficient light on eye health.
(2) Irradiation width
Environmental introduction: According to the sanitary standard GB7793-2010 for lighting and lighting in primary and secondary school classrooms, the maintenance average illuminance value on the classroom desktop should not be lower
0lx。 According to this standard, we fix the lamp in the same position in the darkroom environment, with the vertical projection of the center point of the lamp as the center of the circle, and extend forward until the lux meter displays the number
Stop around 0lx and measure the distance. Since the calculation is calculated from the center of the irradiation circle, the irradiation distance in the opposite direction is the same data, and we multiply the measured distance by 2 to determine the illumination width of the lamp.
OPP 22-HY-00654: The measurement distance is 50cm, and the irradiation width is 100cm;
Huawei MT428: The measurement distance is about 52cm, and the irradiation width is 104cm;
Philips Xuanyang eye protection lamp: measuring distance of 35cm, irradiation width of 70cm;
Mijia LED smart desk lamp: the measurement distance is 35cm, and the irradiation width is 70cm;
Good vision TG168: measurement distance of 33cm, irradiation width of 66cm;
In this comparison, OPPLE and Huawei’s irradiation width is better than that of the other 3 eye protection lamps, reaching 100cm; In actual use, this data is still very meaningful, and it can achieve a larger irradiation range, even if it is far from the center of the light source, it can be seen clearly.
(3) Irradiation uniformity
Irradiation uniformity refers to the ratio of minimum illuminance to average illuminance on a specified surface. The more uniform the light distribution, the better the illumination and the more comfortable the visual experience. The closer the irradiation uniformity is to 1, the better, and vice versa, the smaller it is, the more visual fatigue increases.
In the irradiation uniformity
, we illuminate 5 points at the same distance as the light source
, and take the average, and finally calculate the irradiation uniformity.
Irradiation uniformity
environment
In the data below, you can see the average illumination of 5 table lamps
In the data, the best performer is OPP, average illumination
The value reached 845.14lx, and Huawei in second place is also not small
, so big
Something we didn’t expect.
Uniformity of illumination of 5 types of eye protection lamps
data
In addition, we can also clearly see that no matter which kind of eye protection lamp, the illuminance value located directly in front of the light source is high, and in daily use, we can also intuitively feel the difference in illuminance in different positions relative to the light source.
In the illuminance uniformity data, the top three performed better, all above 0.9. This means that the brightness of the three eye-protection lamps is basically the same in the light range, and there will be no inconsistency between light and dark.
Philips Xuanyang eye protection lamp measured picture, the sides are obviously darker
The three eye protection lamps of Philips, Good Vision and Xiaomi are slightly inferior in irradiation uniformity, and the illumination of the edge area is lower than that of the center, and the illumination range is uneven.
Temperature
In daily use, we can also experience that light with different color temperatures can create different lighting environments, so as to achieve different use effects. For the five types of eye protection lamps tested, we carried out two aspects: maximum color temperature and color temperature span
And recorded.
(1) Maximum color temperature
The maximum color temperature is the color temperature value under direct light, 5 products
Color temperature comparison data
It can be seen that the nominal color temperature range of the 5 participating eye protection lamps is good, basically in
Between 00-5000K, this is also the color temperature range of natural light.
Among the measured data, the data of 5 products all met their calibration range, among which the maximum color temperature value came from Mijia smart LED desk lamp, reaching 6103K; The minimum color temperature value is 3712K from OPPLE 22-HY-00654.
As far as the reading experience is concerned, too low or too high a color temperature value will cause eye discomfort, and dry eyes, soreness, fatigue and other phenomena will occur in a short time. Within a suitable range, white light is less likely to cause visual fatigue than warmer yellow light.
(2) Color temperature span
The span of the color temperature compared to the maximum color temperature value
The data is more meaningful for our actual use, the color temperature span of 5 products
Color temperature span value comparison: (Note: This is the color temperature value under direct light)
Color temperature span value comparison
In terms of color temperature span alone, the span value of Mijia LED smart desk lamp has reached an astonishing 3376K, which is the lowest span OPP1
times, far more than the other 4 test products, can provide a variety of different lighting environments.
This effect is achieved thanks to the color temperature adjustment function of this eye protection lamp, which can be adjusted by pressing and turning the knob without changing the illuminance.
The other 5 products do not have a separate color temperature adjustment function, but they all provide users with different profile modes, and it is quite convenient to preset the best color temperature and illuminance values for various use scenarios such as using computers and reading.
Summary of the review
In general, in the face of our current complex eye environment, an eye protection lamp is still necessary. In fact, the ultimate purpose of our purchase of eye protection lamps is nothing more than to protect the health of vision, and once the wrong product is chosen, it will not only not protect the eye, but also may be counterproductive and cause further damage to the eyes.
For all users who want to buy eye protection lamps, the author has the following points
(1) Try to buy national AA-grade illuminance products, which can bring a larger illumination range than national A-grade products, and the price will not be much worse;
(2) Carefully check the product page when purchasing, whether it has passed the relevant certification, the mainstream ones are 3C certification, IEC no blue light hazard double certification, IEEE no strobe hazard certification, etc., try to buy products with relevant certification marks;
(3) In use, the best range and angle of use can be achieved by adjusting the height of the lamp head, etc., and it should also be noted that any eye protection lamp can not protect the eyes 100%, and timely rest can effectively protect the eyes.
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Philips Xuan Yang eye protection lamp
30
30
30
30
30
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suggestion
Huawei MT428
.APP
OPP 22-HY-00654
Good vision TG168
The data is as follows:
The data is as follows:
gap
gap
。