TheMijia LED has actually been released for a long time. It won the 2017 iF Design Gold Award in the year of its release. From the perspective of industrial design, the Mijia LED desk lamp has reached a very high level.
I vaguely remember that there are still debates on the Internet about whether the red line at the end of the lamp arm is a failure or a finishing touch, but I still like this design. If there is no red line, it would be too serious.
There is only one button for human-computer interaction on the entire lamp:
Click to toggle on/off
Double tap to enter preset mode
Rotate to adjust brightness
Press and hold to rotate to adjust the color temperature
These four functions are all realized through this one button, which is very concise and easy to understand.
Of course, since it is cala smart desk lamp, it can also be remotely controlled through the Mijia App, and it also supports Apple Watch control.
In the app, you can also set a timer switch, or turn on small functions such as the focus mode (45-minute automatic reminder) that cooperates with the Pomodoro Technique.
The light source of Mijia LED desk lamp comes from 42 LED lamp beads, of which 21 are 2700K warm white light, and the other 21 are 6500K cool white light, which is more bluish than the WiT Genie we tested before using 5700K color temperature lamp beads as cool white light. Some.
Therefore, the color temperature change of the Mijia LED desk lamp, like other LED desk lamps, is also achieved by switching the brightness ratio of the two color temperature lamp beads.
In terms of glare control, although the Mijia LED desk lamp is not as good as the WiT product that adopts an arc design and supports partitioned lighting, it is still much better than the traditional round lampshade desk lamp. When the human eye looks directly at the light-emitting area from the side, it will not be too bright, and the screen glare caused by the lamp tube placed close to the screen is also less.
The principle of this is also because the Mijia LED desk lamp has a lens design inside, so that the light path is as far down as possible instead of to the sides.
At the same time, the outer lampshade of the light-emitting component is also frosted, which makes the light source look softer.
In terms of flicker, the Mijia LED desk lamp advertises that there is no video flicker. From the perspective of stroboscopic fluctuation, it does exceed 1000hz, so for the human eye, the impact will indeed be small.
But we also know that if you want to reduce the brightness of the LED to a very low level, then PWM is still the easiest way to do it.
Therefore, when the brightness of the Mijia LED desk lamp is modulated to the lowest level, through high-speed photography of more than 1000 frames per second, we will also find that the Mijia LED desk lamp on the right side of the picture below does have stroboscopic flicker, while the WiT Genie on the left has no frequency. flashed.
Brightness and Color Temperature Test
First of all, we tested the brightness range of the Mijia LED desk lamp. The test point is 37cm directly below the geometric center point of the lamp group. Because the Mijia LED desk lamp actually uses stepless adjustment, the six gears below use the rotary button. test.
We can also find that the knob of the Mijia LED desk lamp has a large brightness change in the lowest and highest gears, and the other gears change more evenly, and the highest brightness can reach a level of about 960lx.
In terms of color temperature, the actual measurement of the Mijia LED desk lamp can cover the range of 2700k~6600K, but when adjusting the color temperature through the knob, the actual color temperature of the app will be somewhat different from the actual measurement. There are a total of 6 gears for adjusting the color temperature with the buttons. The six gears are displayed in the app: 2700K, 3200K, 4000K, 5000K, 6000K, 6500K
However, after our actual measurement, the color temperatures of these 6 gears are 2703K, 3086K, 3887K, 4944K, 6182K and 6602K respectively. There is a gap of about 100K~150K between some gears and the theoretical value, but it is basically invisible to the human eye.
There is one thing I don’t quite understand. For indoor light sources, more than 5500K can be said to be dazzling blue. I don’t know why Xiaomi put the cool color temperature at the 6500K level. I hope you try to keep it within 5000K.
Light distribution uniformity:
Under the daily ambient light, the desktop can be divided into the main work area and the secondary work area, respectively corresponding to the needs of long-term reading and writing and short-term reading and writing. The main work area needs more than 500lx illumination, while the secondary work area needs Illumination above 300lx.
The performance of the Mijia LED table lamp is also expected, because the light-emitting area is a long strip instead of a circle, so when facing a square desktop, the effective lighting area will be larger than that of a round lampshade.
The illuminance directly below the geometric center of the desk lamp is 970lx, which meets the 500lx illuminance requirement of the main operating area, which is almost a little more than a 15-inch laptop. There can be more if you count the secondary job area.
Mijia LED desk lamp, as a low-priced product, can be said to have achieved the best performance in this price range. Its biggest advantage is that it solves the rigid needs of many consumers for desk lamps.
Advantages of Mijia LED Desk Lamp:
The long strip LED light source is brighter than the traditional white weave light, and the effective lighting area is larger
The lamp housing lampshade has a light path design, with less glare from the side and uniform light
Adjustable color temperature from 2700K~6600K, to meet the needs of day to night
It can be controlled remotely with the App, which can realize intelligent functions
There is no visible stroboscopic appearance, which is higher than the national standard
Simple and smooth industrial design
Disadvantages of Mijia LED Desk Lamp:
The lamp is invariable in height and a bit low, blocking my 24″ monitor
The lamp arm can only be tilted up and down, not left and right
The strobe frequency will be reduced at the lowest brightness
Adjusting with buttons is not very precise
In general, the Mijia LED desk lamp is currently the best LED desk lamp I have seen at this price. When you don’t know what desk lamp to buy, you can’t go wrong with it.