Stainless Steel Heating Tube: Made of high quality stainless steel heating tube, with high hardness, strong anti-rust ability and good heat resistance. Rapid heating: 80 degrees Celsius, 1800W high power, combined with high quality stainless steel. The steel heating tube can heat up quickly and increase the water temperature quickly. Heating only takes 1-2 minutes. It should be noted that the metal part should be completely immersed in water when using HIGH QUALITY POWER CORD: The immersion heater comes with a one meter long power cord. The power cord is made of high quality copper wire. It is wrapped in PVC insulation. It resists high temperatures and oxidation. You can use it with confidence. Small and easy to carry: The heating element is medium in size, perfect for heating water or coffee in a mug or pitcher at home, in the office, in your dorm room or while traveling. If there is no groundable adapter in your package, please contact our customer service and we will send you a groundable adapter.