Light waves are measured in nanometers, and the human eye can usually see light between about 380 nm and 750 nm. Light below 400 nm is called ultraviolet or ultraviolet light and is harmful to the human eye, but we can't see it. But between 380 nm and 500 nm is the blue light visible to the human eye, which is visible with irritating light.

　　We are staring at our computers, mobile phones and tablets all day long. These electronic products use LED or LCD panels to help increase brightness and clarity. The blue light they emit penetrates our retina, causing eye damage and causing us Dry eyes, eye fatigue, insomnia, it can also lead to epilepsy, ADHD and autistic children with increased symptoms. So we can buy pc blue light blocking screen protector panel to stop all the bad things happen.

　　The pc blue light blocking screen protector panel uses a special coating to block light in the 380-500 nm range. It also blocks 99% of UV rays, provides UV400 and protects against radiation and glare, reducing eye strain. This anti-blue screen protector has other functions such as water, oil, and scratch resistance. At the same time it can be easily installed and will not leave any residue when removed. Factory wholesale telephone 13433007870!