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 Samsung LS22E45UDWG, 55.9 cm (22"), 1680 x 1050 pixels, WSXGA+, LED, 5 ms, Black Samsung LS22E45UDWG. Display diagonal: 55.9 cm (22"), Display resolution: 1680 x 1050 pixels, HD type: WSXGA+, Display technology: LED, Response time: 5 ms, Native aspect ratio: 16:10, Viewing angle, horizontal: 170°, Viewing angle, vertical: 160°. Built-in USB hub. VESA mounting, Height adjustment. Product colour: Black