Samsung PX2370 23-Inch Widescreen LCD Monitor with LED Backlight Samsung's ultra-slim LED monitors will revolutionize your personal computing environment. Don't be afraid of the dark. Or the light. The PX2370 ensures your dark and light colors are never compromised. Magic Eco makes saving energy easy. This feature allows you to work on your monitor at 100 %, 75 % or 50 % brightness The MagicLux feature measures ambient light and has four settings which automatically adjust the screen to optimum brightness.