1) The welder has protect functions of over heat,over current ,safety and reliable2)The welder structure is reasonable ,control PCB of each part are all adopt connector or screw to connect,it has good changeability and convenient maintenance.3)The welder has line woltage auto compensation function to make the current more stable.4)The welderadopt air switch as power switch ,it is safety and reliable ,and has a long service life.5)The welder has advantages of small volume,light weight ,low noise ,nice appearance,and convenient to take.6)Adopting the most advanced inverter and mosfet power switch tube . 7) Multi-purpose, high-frequency arc starting and high success probability of arc establishment . 8) Small volume, light weight and easy to carry . 9) The best choice for the welding of the sheet including stainless steel and mild steel . TypeWSM-100WSM-160WSM-200Rated Input voltage1-220V 50/60Hz Rated input capacity3.8kVA5.3kVA6.8kVARated iutput current17.5A24A30ARated current current100A160A200ARated load cycle60%Current range5-100A5-160A10-200ABasic current range5-100A5-160A10-200APulse frequency range0.5-25HZPulse duty ratio0.1-0.9Time of lag air-dalay2.5s/55sMode of are startingHigh frequency are starting and touch startingWeight10kg14kg16kgDimension(L×W×H)155*355*255mm155*1355*255mm155*1355*255mm