Anti-Blue Light Screen Filter for 26 and 27 Inches Computer Monitor — Size 14" Height x24.1" Width — Blocks Harmful Blue Light (380nm to 480nm) — Not Compatible with 27" iMac

This screen filter blocks blue light in the 380nm to 480nm wavelength range. The filter's active area measures width 24.09 inch and height 14 inch — please compare these dimensions with the images in the listing before purchasing. Made for 26 and 27 inches computer monitors (do NOT fit 27" iMac), it helps reduce digital eye strain and can improve sleep quality. The protector preserves your monitor's full visible colors, is easy to install, and also protects the display surface from scratches.