Lightning arrester, also known as surge protector, is an electronic device that provides safety protection for various electronic devices, instruments, and communication lines. When the electrical circuit or communication line suddenly generates peak current or voltage due to external interference, the surge protector can conduct shunt in a very short time, thereby avoiding damage to other equipment in the circuit caused by surges< Lightning arrester, suitable for AC 50/60HZ, rated voltage 220V/380V power supply systems, to protect against indirect lightning, direct lightning impact, or other transient overvoltage surges. It is suitable for the requirements of surge protection in household residential, tertiary, and industrial fields.