Blue Light Screen Protector Panel For 26"/27"/28" Diagonal LED PC Monitor (W 24.80" X H 15.55") (W630mm x 395mm). Blue Light Blocking up to 100% of Hazardous HEV Blue Light from LED screens. Reduces Digital Eye Strain to benefit eye health. For office or home PC's to promote Healthy Eyes for Working People. For 26"-28" diagonal screen. Absolutely the best optical quality Blue Light Blocking Panel available today. Blocks 100% of Hazardous UV light and reduces HEV Bluelight up to 100% with excellent Color Transmittance. Anti-Blue Light blocking between 380nm~495nm for wide range HEV protection. Reduces digital eye strain when viewing LED screens: Office PC, Home PC, eSports or eGaming. Design allows for easy installation and removal. Sizes available to fit most LED flat panel monitors.