E 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. E Philips 245B1, 61 cm (24"), 2560 x 1440 Pixels Philips 245B1. Beeldschermdiagonaal: 61 cm (24"), Resolutie: 2560 x 1440 Pixels, Oorspronkelijke beeldverhouding: 16:9