VizoBlueStop anti-blue light TV screen protector blocks 60% of the harmful wave length of blue light between 380nm~480nm and also blocks 100% of UV light. Scientists have proven that when we are exposed to too much of the harmful blue light this may lead to insomnia, obesity, depression, eye redness and even cataract, and myopia. This underlines your eyes and body will be healthier and better protected when you have put the blue light protector of VizoBlueStop. It will help your eyes feel more relaxed, less red and tired. The protector will also improve your circadian rhythm because VizoBlueStop blocks the harmful blue light and improves your sleeping patterns. VizoBlueStop does not distort the quality of the TV picture or colors. It is 100% transparent. The installation is easy: you simply add some Velcro strips and attach the TV protector to your TV screen. You can use the strap for extra secure attachment. Take one end of the security strap that is inserted in the opening located on the TV screen protector top. Run the security strap at the back of the TV and around the TV stand or wall-mount and securely connect the two ends. These are provided in the installation package.