Blue Light Screen Protector Panel For 19" Diagonal LED PC Monitor (W 17.13" X H 11.42") (W435mm x H290mm). 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 19" inch diagonal viewing area of your wide screen monitor. 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.