Dell 20 Monitor E2020H / 5M0HY. The Dell 20 Monitor is perfect for professionals who work long hours and depend on a monitor that will display stunning visuals while optimizing eye comfort. Screen performance: View your applications spreadsheets and more on a 19.5 inch monitor with 1600×900 HD clarity 16.7 million colors and a contrast ratio of 1000:1. Work comfortably: The TUV certifiedi flicker-free screen with ComfortView a feature which helps reduce harmful blue light emissions optimizes eye comfort. Auto Mode and PowerNap: Color settings of your applications are now customizable and allow for presets. And with PowerNap you can worry less about wasting energy when you?re away from your computer.