E means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. E Lenovo Legion R27fc-30, 27", 1920 x 1080 pixels, Full HD, LED, 6 ms, Black Lenovo Legion R27fc-30. Display diagonal: 27", Display resolution: 1920 x 1080 pixels, HD type: Full HD, Display technology: LED, Response time: 6 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Built-in speaker(s). VESA mounting, Height adjustment. Product color: Black https://monitornerds.com/lenovo-legion-r27fc-30-review/ on AmazonThe Lenovo Legion R27fc-30 makes curved screens fashionable again while costing as little as possible. It's a 280Hz overclocked variant, combining immersive qualities with E-Sports grade speeds and capabilities. Let's take a closer look to s... Fantastic Colors and Responsiveness, Excellent Build Quality, HDMI 2.1, Very Affordable, Poor Uniformity, Not a Lot of Features