Blue Light Screen Protector Panel For 19&rdquo; Diagonal (5:4) PC Monitor (W 16.14" X H 13.19&rdquo;). Blue Light Blocking up to 100% of Hazardous HEV Blue Light from LED screens. Reduces Digital Eye Strain. 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. 8 Sizes available to fit most LED flat panel monitors.