The regulator tube is broken. If the voltage regulator is 5V, the voltage you measure is 5.3V, which means that the voltage regulator is broken and has no voltage stabilizing effect. When the resistance increases, the partial voltage increases and the voltage behind it decreases. Health pot refers to a small household appliance that can cook various ingredients for the purpose of health care, similar to an electric kettle. It belongs to the national compulsory certification product.