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 Lenovo Flat Panel Essential ThinkVision L171, 43.2 cm (17"), 1280 x 1024 pixels, 5 ms, Black Lenovo Flat Panel Essential ThinkVision L171. Display diagonal: 43.2 cm (17"), Display resolution: 1280 x 1024 pixels, Response time: 5 ms, Viewing angle, horizontal: 140°, Viewing angle, vertical: 135°. Product colour: Black