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 27UL500-W, 68.6 cm (27"), 3840 x 2160 pixels, 4K Ultra HD, 5 ms, Black, White LG 27UL500-W. Display diagonal: 68.6 cm (27"), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Response time: 5 ms, Native aspect ratio: 16:9, Viewing angle, horizontal: 178°, Viewing angle, vertical: 178°. Product colour: Black, White https://www.monitornerds.com/lg-27ul500-review/ on AmazonThe LG 27UL500 is the next budget variant of the Korean brand's extensive 4K IPS monitor portfolio which provides excellent quality and performance for the price. This model builds on the success of the 27UD58 which surprised the market... What's fantastic about the LG 27UL500 is its premise of class-leading affordability if you consider its design and lineage. LG has always been great with IPS products, but this particular option needs a bit of tweaking. Color fidelity is decent, but other...