WLED backlight technology provides a clear and smooth display 75 Hz standard refresh rate reduces deterioration caused by blurring to ensure maximum productivity Experience breathtaking level of details when you open your eyes to the clarity of 4K UHD screen 27″ viewable screen size provides a lively viewing experience 16:9 widescreen resolution perfect for watching movies, playing video games and getting on with office work 5 ms response time makes it excellent for latest action films, sports or gaming HDMI interface allows you to connect to a variety of HD devices including gaming consoles, Blu-ray players, laptop PCs, digital cameras and many others for the ultimate true high-definition display Furnishes captivating visuals with 400 Nit brightness levels 3840 x 2160 maximum resolution for stunning, lively result with optimal viewing usability Is power-efficient with minimal heat production to ensure a prolonged, convenient usage EPEAT Gold certified – reduced environmental impact from multiple eco-attributes. Ranked in three tiers: Bronze, Silver or Gold. Energy efficient – designed to use less energy than alternative products, potentially helping you save money and reduce your carbon footprint.