The ViewSonic VX1932wm-LED 19" Widescreen LCD Monitor is the addition to a green-line of LCD monitors. With dynamic contrast ratio at 10,000,000:1 you get a true-to-life picture depth and clarity in any room. Backlight WLED automatically detects image signal and intelligently controls backlight brightness, making the black, pure black in a dark scene and the white, "whiter" in a bright environment. It also automatically adjusts gray level and enhances the LCD monitor's gray level performance range. Perfect for office applications, multimedia applications, Internet browsing and anyone who wants to reduce their energy bills .It uses 50% less power without compromising your viewing quality and has eco-friendly mercury free WLED backlight.