We all know the DAMAGING effects of blue light, such as headaches and migraines; Decreases daytime alertness; increases the risk of macular degeneration.
But not all blue light is bad.Beneficial blue light (455-500 nm) boosts alertness, helps memory and cognitive function, and elevates mood. Also, beneficial blue helps regulate circadian rhythm ? our natural wakefulness and sleep cycle.
Cheerwe Screen Protector filter the harmful blue light with the wavelength between 385-445 nm,and release the beneficial light with wavelength above 445 nm