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 QM43B-T, Digital signage flat panel, 43", LCD, 3840 x 2160 pixels, Wi-Fi, 24/7 Samsung QM43B-T. Product design: Digital signage flat panel. Display diagonal: 43", Display technology: LCD, Display resolution: 3840 x 2160 pixels, Display brightness: 500 cd/m², HD type: 4K Ultra HD, Touchscreen. Wi-Fi. Operating hours (hours/days): 24/7. Operating system installed: Tizen 6.5. Product color: Black