Are the leakage protector and overvoltage and undervoltage tractor the same function? My home often jumps, and the property says it is a temporary home, and the electricity and voltage are unstable.

Leakage protection and overvoltage protection are two kinds of protection devices with different functions. Leakage devices are generally used in electric water heaters. If the water heater leaks electricity, the leakage protection will not only work, but also disconnect the circuit, which will protect us more safely in use. I haven't used overvoltage protection. It should be that when the normal voltage exceeds the rated value, the overvoltage protection will automatically cut off the power supply to prevent the electrical appliance from burning out. The LED lamp is a DC power supply, which needs to be converted into DC before it can be used. After the LED light is turned off, it is still slightly bright. It may be that the live wire and the ground wire were connected backwards during installation. . .