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 Hisense 58A6DG, 147.3 cm (58"), 3840 x 2160 pixels, 4K Ultra HD, Smart TV, Wi-Fi, Black Hisense 58A6DG. Display diagonal: 147.3 cm (58"), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Screen shape: Flat. Smart TV. Display brightness: 300 cd/m², Contrast ratio (typical): 4000:1, Native aspect ratio: 16:9. Digital signal format system: DVB-C, DVB-S, DVB-S2, DVB-T, DVB-T2. Wi-Fi, Ethernet LAN. Product colour: Black