... 3)The Most Comparative Price 4)Different type for Selection Automatic Voltage Switch,AVS,Sollatek,Voltage Protector,Power Protector,Power,Power Regulator, ... Power Stabilizer,Power Inverter,Home Inverter,Automatic Voltage Switcher1) AVS13A: 13A with 1 minute standard delay 2 ... the supply returning and remaining within the window. Automatic Voltage Switch(AVS)//Voltage Protector