ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR Viewsonic LED LCD VS15457, 27", 1920 x 1080 pixels, LCD, 3.4 ms, Black Viewsonic LED LCD VS15457. Display diagonal: 27", Display resolution: 1920 x 1080 pixels, Display technology: LCD, Response time: 3.4 ms, Viewing angle, horizontal: 170°, Viewing angle, vertical: 160°. VESA mounting. Product color: Black