There are many health benefits of the sun the least known to many being the sun’s light kills bad bacteria.
The German soldiers after WWI knew of the discoveries that had been made in 1903 by the Nobel Prize winner, Niels Finsen. They used sunlight to disinfect and heal wounds.
While plants need light to grow, not all light or plants are the same. If someone asks, “What kind of light do plants need” they may be referring to the light spectrum. Plants are affected by light that falls into the “blue” spectrum of the light scale. Daylight, fluorescent light and grow lights all have “blue” tones in them and will help provide the light your plant needs. Incandescent and halogen lights are more “red” and will not help your plant grow.