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 DELL ST2220, 54,6 cm (21.5"), 1920 x 1080 pixels, Full HD, 5 ms, سیاه DELL ST2220. قطر صفحه نمایش: 54,6 cm (21.5"), رزولوشن صفحه نمایش: 1920 x 1080 pixels, HD type: Full HD, زمان واکنش: 5 ms, Native aspect ratio: 16:9, زاویه دید افقی: 160°, زاویه دید عمودی: 170°. رنگ محصول: سیاه