N/a manufacturer / supplier in China, offering 2166D 20 Ampere Digital Adjustable Voltage Protector American Plug, Avp1-100A Digital Adjustable Overvoltage and Undervoltage Protector, Protecting Home Circuits, 10 Years Source Factory Provides 2155 Universal Voltage Protection Sockets, African Voltage Protectors, Refrigerator Protectors and so on.