First of all, aaa
Eye protection lamp Aaa refers to the healthy lighting level certified by the International Lighting Commission, and aa refers to the illuminance and uniformity level specified in the national quality standard. The former shows that the light of the desk lamp is healthy, and the latter shows that the illuminance and uniformity of the desk lamp have reached the top level. These two indicators cannot be compared together.
Second, the country aa
AAA and AA are illumination standards for reference desk lamps. Relatively speaking, AAA-class desk lamps are superior to AA-class desk lamps in desktop illumination, illumination uniformity, color tolerance and other indicators. If we insist on which is more important, obviously the national AA level is more important, because it can directly reflect the brightness, light uniformity, lighting range and so on, but whether the light is healthy or not, we can hardly perceive it.
How to choose eye protection lamp;
Need to look at the light of eye protection lamp, the brightness should be stable, and there should be no flicker. Because it is an eye protection lamp, the light must be soft and the design of the lampshade must be reasonable. Check whether the product has various certificates, such as instruction manual, patent certificate, quality assurance card, inspection report, etc. , but also depends on whether there is a 3C mark required by the state.