G 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. G LG 27UL600, 27", 3840 x 2160 pixels, 4K Ultra HD, LED, 5 ms, Silver, White LG 27UL600. Display diagonal: 27", Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: LED, Display surface: Matt, Response time: 5 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. VESA mounting. Product color: Silver, White