D refers to the energy efficiency class of the complete cycle. The Energy Labeling system is based on EU Regulation 2017/1369/EU. D B refers to the energy efficiency class of the washing cycle. The Energy Labeling system is based on EU Regulation 2017/1369/EU. B Hotpoint NDB 8635 GK UK, Front-load, Freestanding, Graphite, Left, Black, Buttons, Rotary Hotpoint NDB 8635 GK UK. Loading type: Front-load, Appliance placement: Freestanding, Product color: Graphite. Drying capacity: 13.2 lbs (6 kg), Maximum spin speed: 1351 RPM, Spin-drying class: B. Cord length: 47.2" (1.2 m). Energy efficiency class (washing): B, Energy efficiency class (washing & drying): D, Water consumption washing per cycle: 48 L. Depth: 21.3" (540 mm), Width: 23.4" (595 mm), Height: 33.5" (850 mm)