A 1.7L Tefal electric kettle is a large-capacity, fast-boiling appliance, typically with powerful heating (2400W), a 360° swivel base, auto shut-off for safety, and a removable anti-scale filter for clean water, available in materials like plastic (Element), stainless steel (KI150D), or glass, designed for quick, convenient, and stylish hot water preparation for tea, coffee, and more, with features varying by model like digital temperature control or insulated walls.