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 The Electronic Product Environmental Assessment Tool (EPEAT) is a global ecolabel for the IT sector. The EPEAT program provides independent verification of manufacturers’ claims and the EPEAT online Registry lists sustainable products from a broader range of manufacturers than any comparable ecolabel. National governments, including the United States, and thousands of private and public institutional purchasers around the world use EPEAT as part of their sustainable procurement decisions. EPEAT helps purchasers, manufacturers, resellers, and others buy and sell environmentally preferable electronic products. EPEAT-registered products must meet environmental performance criteria that address: materials selection, supply chain greenhouse gas emissions reduction, design for circularity and product longevity, energy conservation, end-of-life management and corporate performance. Bronze-rated products meet all of the required criteria in their category. Silver-rated products meet all of the required criteria and at least 50% of the optional criteria, while Gold-rated products meet all of the required criteria and at least 75% of the optional criteria. EPEAT Gold 联想 ThinkVision Pro2840m, 71.1 cm (28"), 3840 x 2160 像素, 4K Ultra HD, 5 毫秒, 黑色 联想 ThinkVision Pro2840m. 显示器尺寸（对角长）: 71.1 cm (28"), 显示器分辨率: 3840 x 2160 像素, HD 类型: 4K Ultra HD, 响应时间: 5 毫秒, 原机长宽比: 16:9. 内置扬声器. 内置USB集线器, USB集线器版: 3.2 Gen 1 (3.1 Gen 1). 产品色彩: 黑色