The Pro Lite E2278HD is a 21.5 inch FHD 1920x 1080 LED-backlit monitor. It features 5msec response time & >5M: 1 Advanced Contrast Ratio assuring vibrant images & blur free Video. Analogue VGA & Digital DVI inputs ensure compatibility with the latest systems & associated graphics cards. The monitor is Energy Star qualified & VESA mount compatible. A reliable solution for both home & office use. A typical CCFL LCD uses four backlight lamps. Using LED diodes considerably lowers the power consumption & reduces the CO2 emission into the environment making this LCD a true ECO-Friendly product. With true 1920 x 1080p resolution your monitor is ready to display high definition images. This means you can accommodate more information on your screen; e.g. 60% more in comparison to a 1280 x 1024 monitor. Contrast Ratio is a measurement of the difference between the darkest black & the brightest white your monitor can display. Advanced Contrast Ratio is a feature that automatically adjusts contrast & brightness of the screen to assure perfect picture quality while watching films & playing games. VESA mount compliance means you can easily mount your monitor to a wall.