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 RoHS stands for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products (known as EEE). All applicable products in the EU market after July 1, 2006 must pass RoHS compliance. The substances banned under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB), polybrominated diphenyl ethers (PBDE), and four different phthalates (DEHP, BBP, BBP, DIBP). RoHS AOC E2050SWDA, 49.5 cm (19.5"), 1600 x 900 像素, 5 毫秒, 黑色 AOC E2050SWDA. 显示器尺寸（对角长）: 49.5 cm (19.5"), 显示器分辨率: 1600 x 900 像素, 响应时间: 5 毫秒, 原机长宽比: 16:9, 视角，水平: 170°, 视角，垂直: 160°. 内置扬声器. VESA 安装支架. 产品色彩: 黑色