Item Name:Single phase electronic voltage regulatorInput Voltage :AC 220V EU PLugOutput Voltage :AC 0-220V Adjustable (output Voltage less than 5V ,the voltage meter won't work)Peak power:4000W (When input 220v)Voltage adjust Range:0-220V (connect to Load),Rated current:9APeak current:18AFeatures: Zero hysteresis, zero delay, with peak voltage absorption circuit, effectively protect high-power thyristor, anti-surge, anti-spike, multiple protectionSize:13*7.5*6cmPower supply cable long about 82cmNotice: Need connect to greater than 10W load will have Output voltage ,The max power mean work for Resistive load , if connect to inductive load the power about is max power 1/3