Professional P2011H 20" LED LCD Monitor - 16:9 - 5 ms Display diagonal	20 " - Response time	5 ms Display brightness	250 cd/m - Contrast ratio (typical)	1000:1 Display resolution	1600 x 900 pixels - Viewing angle, horizontal	170 Viewing angle, vertical	160  - Number of colours	16.7 M Color of product	Black - LED Back Light