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 ASUS MS228H, 21.5", 1920 x 1080 pixels, Full HD, 2 ms, Black, Blue ASUS MS228H. Display diagonal: 21.5", Display resolution: 1920 x 1080 pixels, HD type: Full HD, Response time: 2 ms, Viewing angle, horizontal: 170°, Viewing angle, vertical: 160°. Product color: Black, Blue