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 Electrolux LRB1DE33X, 309 L, SN-T, 38 dB, E, Stainless steel Electrolux LRB1DE33X. Fridge net capacity: 309 L, Climate class: SN-T, Noise level: 38 dB. Fridge number of shelves/baskets: 4, Number of vegetable drawers: 1. Lamp type: LED. Door hinge: Right. Annual energy consumption: 112 kWh, Energy efficiency class: E. Product colour: Stainless steel