C 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. C Beko b100 WTIK74151F Integrated 7kg 1400rpm Washing Machine with Quick Programme, Front-load, 7 kg, B, 67 dB, 1400 RPM, C Beko b100 WTIK74151F Integrated 7kg 1400rpm Washing Machine with Quick Programme. Loading type: Front-load. Rated capacity: 7 kg, Spin-drying class: B, Noise level (spin): 67 dB. Washing class: A. Maximum spin speed: 1400 RPM. Product colour: White. Width: 600 mm, Depth: 560 mm, Height: 820 mm. Energy efficiency class: C