The difference between simulated fluorescent lamp and real sun.

Sunlight is emitted by processes such as nuclear fusion in the sun. Artificial light, such as ordinary light bulb, is a light wave emitted by tungsten wire heated to a very high temperature. Because the light source is different, the spectrum is naturally different.

Because the light source is different, the spectrum is naturally different. The spectrum of sunlight is wider, such as strong ultraviolet rays in sunlight. Although both artificial light and sunlight can produce white light, white light is mixed light. For example, in artificial light sources, fluorescent lamps or energy-saving lamps are white light. But there is still a big difference between artificial light and sunlight. First, from the flicker effect of light source, artificial light source is bound to have stroboscopic effect, and human eyes are prone to fatigue in such an environment, while sunlight will not have stroboscopic effect. Yan Ren won't feel too tired after being exposed to sunlight with suitable brightness for a long time. Secondly, in terms of patronage continuity, no matter how close to the white light of the sun, the artificial light source will have obvious peaks or valleys in the continuity of the optical valley, while the light spectrum of the sun is very continuous and the white light produced is very real. In terms of color rendering, the color rendering of artificial light source is not as good as that of sunlight, specifically, the color will be biased.