The Lenovo monitor is your perfect companion. The 21.5 Full HD display is easier on your eyes and helps you be more productive by allowing multiple screens to be open at one time. The Lenovo L2230x saves your time and offers you a cheaper alternative without compromise. In addition it is TCO Certified Edge EPEAT Gold and Energy Star 5.0 certified saving your energy costs and the environment.Product Description Lenovo L2230x 21.5 inch Widescreen LCD TFT Black Monitor Size 21.5InchResolution 1920x1080 Aspect Ratio 16 9Contrast Ratio 1000 1Response Time 5msBrightness 250 cd/m2Technology TFT active matrixType LCD Display Colour Business Black Warranty 3 Year Onsite Warranty