5 Setting the Temperature Control and LED Indicator Light -- Depending on the type of beverage being prepared, the hot water kettle electric can set different temperatures between 122? and 212?, and the exact temperature can be regulated for perfect preparation. The different colors of the kettle show different temperatures: 122?(green), 158?(blue), 176?(purple), 194?(light green), 212?(red). Healthy Materials -- The Glass tea kettle is made of high-quality borosilicate glass and food-grade 304 stainless steel, which is safe, environmentally friendly, and safe to use. All stainless steel inner covers and all surfaces that come into contact with water are made from food-safe materials. Quick Heating and Large Capacity -- It only takes 3-7 minutes to boil 1.7L of hot water, the 1500W electric kettle is faster than most products on the market. Once you activate the kettle's keep warm function, the electric tea kettle will keep the water at the selected temperature for 30 minutes. Cook Dry Protection -- The electric tea kettle thanks to the advanced safety technology, this kettle switches off automatically as soon as you have reached the set temperature. It will also shut down safely if it automatically detects that there is no water inside. High Quality and Support -- We strive to provide reliable quality products to our customers. Please contact us if you have any questions.