240vac 50/60hz input single phase 1ph 200amp weld draws 20amps at 4.5kva 120amp weld draws 12amps at 1.9kva output variable 10-200 amps power usage at rated output 20amps at 240vac duty cycle 60% at 200amp tig 100% at 120amp tig no load v 56 working v 18 weld materials steel stainless moly ferrous aluminum copper brass etc gas flow(argon) 2-5l/min operating modes ac dc pulse 2t 4t mma tig 85% efficiency power factor .93 insulation class b protection class ip21 air cooled torch pre gas flow 0-2sec clean width 20-80% current down slope time 0-5sec pulse duty cycle 10-90% post flow 1-10sec basic current 10-90% pulse frequency .5-300hz air proportion 10-90% high frequency start ac dc welding tig torch cable 16ft consumables included 1x #4 shield cups 1x #5 shield cup 1x #6 shield cup 1x tungsten rod 3x collets 1x collet body 1x long 1x short back cap for tight spaces. twist connector for mma stick holder stick holder not included)