Sunkko 709A welder + spot station

https://youtu.be/U845CtoX6zw 2 in 1 1.9kw Spot Welder Soldering Iron Staion Supply Voltage AC 220 V / 50 Hz Power 1.9 KW (Instantaneous) Current 500 A Electric leakage Switch Requirement 60 A or more than 60 A Time of Double Pulse 1 ~ 10 ms (Instantaneous Welding Time) (adjustable, by adjusting the welding current knob) Time of Four Pulses 2 ~ 20 ms (adjustable) (Instantaneous Welding Time) Time of Eight Pulses 8 ~ 80 ms (adjustable) (Instantaneous Welding Time) Welding Pin Range 5 - 6 mm Welding Pressure 300 - 500 g Welding Distance Adjustable Suitable Welding Thickness 0.03 - 0.3 mm for Fixed Copper Head 0.03 - 0.2 mm for Mobile Welding Pen Soldering iron part Temperature 150°C ~ 450°C Power 50 W Output Voltage 20 V DC