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Do you know much about LED lamps? The LED chip directly generates visible blue light after the electrons pass through, and the blue light changes through the phosphors covering the surface of the chip to produce the light color we want. The advantage of LED lights is that they can appear in fron...Read more »
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Let’s talk about some basic knowledge about lights first. 1. Color temperature The color temperature of the sun is 5000k, and the color temperature of a match is 1700k. The higher the color temperature, the brighter it is, and the lower the color temperature, the more dim it is. For children, the...Read more »
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Recommendations for buying table lamps, have you paid attention to these aspects? First, the lighting range should be large. A lot of people ignore this and just focus on the intensity of the lighting. Of course, the intensity is very essential.However, if the lighting range is not enough, no mat...Read more »
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Choosing the right desk lamp is very important for relieving visual fatigue, dry eye syndrome, and preventing myopia from deepening. Whether it is an office worker using a computer or a student reading a book, an eye protection desk lamp is required. What? You said that the ceiling lights are als...Read more »
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The advantage of table lamp about eye protection is that people’s eyes are not easy to fatigue when using the table lamp to work and study under the table lamp for a long time. The light is more suitable for the eyes to work and study when using data design of the optical principle. The p...Read more »
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The correct methods of table lamps are shared for you！ First, the correct way to use the eye protection lamp – the height The distance between the eye protection lamp and the book should be 40-50 cm so that there will be no dark shadows and the surrounding environment will be bright,as wel...Read more »
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With the development of science and technology, there are more and more electronic products in our daily life.Most of them are developing in the direction of multi-function,which is practical, convenient and multi-functional. Therefore, these products are also widely favored by the people. ...Read more »
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Frequently learning under a stroboscopic light source will damage the optic nerve. We turned on the camera of the mobile phone and pointed it at the light source of the desk. If the light source was clearly presented, it was proved that there was no flicker. No glare = no eye damage, avoiding myo...Read more »
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The so-called eye protection lamp is to make ordinary low-frequency flashes into high-frequency flashes. Generally speaking, it flashes thousands of times or even tens of thousands of times per second. At this time, the speed of flashing exceeds the speed of human eye’s nerve response. For ...Read more »
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The current vacuum cleaners mainly have the following three filtration methods, namely, dust bag filtration, dust cup filtration and water filtration. The dust bag filter type filters out 99.99% of particles as small as 0.3 microns, which is more convenient to clean as a whole. However, the vacuu...Read more »
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The name of the sonic toothbrush is derived from the first sonic toothbrush, Sonicare. In fact, Sonicare is only a brand, and has nothing to do with Sonic. Generally, the sonic toothbrush is only at a vibration speed of 31,000 times/min or more. However, after the translation, I don’t know if it ...Read more »
