Surge protectors protect indoor lightning protection of power supply was finally discharged into the system through the formation of blocking guidance to prevent direct lightning or thunder and lightning electromagnetic pulse on the building itself or the damage caused by its internal device protection. Should not be used without a surge protector measures or lack of televisions, stereos and other appliances. Far from doors and Windows, metal pipes. Unplug the electrical plug, close the appliance and gas switch. Avoid using hair dryer, electric shaver. Do not use tap water.