Lidl PARKSIDE ® PISG 120 A2 Stick Welding Machine Unboxing and Test / MMA Elektrodenschweißgerät 

Also bei Standard-universal Elektroden den Elenkrodenhalter am Minuspil anschließen, oder?

I used an older one of them , the only difference I see In them I see it the on/off switch has turned 90 degrees. I ran 2.5 rods all day with no issue at all. It says it will run 2.5 rods from 65 to 80 on the settings and not to run any bigger rods but I had to run the rods below that setting which just shows that it is higher than it's spec.

May I know how much the price?

I would have stuck that electrode 100 times before striking an arc!