What’s the difference between artificial light and sunlight? Do we get more vision?
Sunlight or natural light is produced by the sun, it contains all the colors of the spectrum and it produces heat and color. An artificial light source consists of an electronic device that emits light. Unlike natural sunlight, artificial lighting intensity can be adjusted and, even though artificial lights don’t radiate a full spectrum of colors, full-spectrum bulbs that mimic natural sunlight are available. These full-spectrum bulbs that simulate sunlight are said to be great for vision because they provide very good color-rendering, have increased brightness, and give better visual acuity. So even though NOTHING can replicate sunlight in its entirety, there are very good alternatives that come pretty close to it.
The obvious diff between artificial light and sunlight is that one is power sourced and the other isn;t. Can we replicate sunlight? Some lighting providers claim we can. And they’re refering to full spectrum light. I went to a lighting showroom the other day to see for myself what the fuss was about. 1) full spectrum light bulbs are more expensive. However, 2) they do feel brighter. I asked to see a demonstration of 3000K, 3500K and 5000K and the diff is quite amazing. 3) the salesman told me to take into account color rendering, so I tried one with 80 CRI. I ended un buying two new lights (5000K, 80CRI), and I’m loving them. Well worth the investment and my eyes are certainly grateful.
There are some differences between sunlight and artificial light – most artificial light doesn’t emit as much energy in the red and blue region of the light spectrum as sunlight does.
The sun, a torch, and a light bulb all emit energy in the form of particles called photons. The photons from the sun are a product of thermonuclear fusion. A torch uses a chemical reaction to burn. A light bulb converts electricity to photons.
Vastly more energy comes from the sun than from any artificial light. But the light from the sun is different from a street lamp another way: most artificial light doesn’t emit as much energy in the red and blue region of the light spectrum as sunlight does.
Researchers can successfully grow plants using only artificial light in growth chambers. But sunlight is best for most plants. It’s generally more intense than artificial light, and it’s pretty equally distributed among the different wavelengths that earthly plants have evolved to like best.
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