This dual-core belt with overload of lightning protection, SPD SPD module voltage instability can be eliminated or when lightning is caused by a variety of

Chung, overload protection is automatically when you plug your electrical appliance exceeds the rated power cut off power supply, polarity detection testing ground

Missing or zero line upside down, in addition to upgrading the South Island electricity leakage protection plug, if shock or electrical leakage, the human body is automatically cut off the circuit to safeguard personal safety are more reliable!