In the modern design, nowadays people used an electric kettle which has reached boiling point, the kettle automatically deactivates, preventing the water from boiling away and damaging the heating element. The kettle has a large capacity and an elegant glass design which is easy to use on the right-hand side.
It’s mostly used for a kitchen with a stylish and essential addition, a more upright design, the “jug”-style electrical kettle. So, you can boil enough water for tea and one goes for quicker cooking.
The jug style kettle has a lighting system, that red light up when switch on automatically switch off when water temperature heat.
Source : https://www.currys.co.uk/gbuk/household-appliances/small-kitchen-appliances/kettles/russell-hobbs-15082-illuminating-jug-kettle-clear-glass-06129751-pdt.html