What is blue light? Is it harmful?
Blue light’s wavelength is from 450-495, which will bring great harm to our eyes.
In particular, research in recent years has shown that blue wavelength light is especially harmful to circadian rhythm function. Studies have shown that blue wavelength light has uniquely harmful effects on humans, and suppress melatonin levels more vigorously than other light wavelengths. Unfortunately, many energy-efficient light sources produce high concentrations of blue light. Blue light is emitted by electronic devices, energy-efficient light bulbs, and other common light sources.