Specification Pulse mobile soldering part Soldering pen and cable length 570mm x 2cable sectional area 18mm x 2welding needle size 1 5mm x 7mmthe largest welding pulse current 600A Thermostat soldering station part Temperature 150 to 450℃constant temperature precision 5℃Power 50Wsoldering station ouput Output voltage 20VDCheating up time 6 8s to 300℃ Spot welder part Supply voltage AC120V 220V20VPower 2 2KW Instantaneous Current 50 600ATime of double pulse 1 10ms adjustable Time of four pulses 2 20ms adjustable Time of eight pulses 8 80ms adjustable Application Lead sheets of rechargeable battery can be welding rapidly The production installation welding of lithium battery or mobile power The welding of lead sheets and wires from metal parts The difference between the 709A1 709AD with pulse display 2 709AD fixed spot welding distance but 709A can adjust spot welding distance Package Included 1 x SUNKKO 709AD 2 2KW 110V 220V Spot Welder Detail Pictures