It is AC/ DC. There is no TIG capability now, in the future I might buy an add-on kit for TIG. I don't have a MIG welder yet.
8 ga is adequate in my setup now because the welder is right next to the power panel and I am not welding very thick metal. Also the cable is 8/3 and it only needs 8/2. The white is not being used at the moment. I could twin the white with either the red or the black to reduce voltage drop.
The bluriness of the photos was from the camera not being held very steady. I usually get much better photos but , for some reason, I just could not hold the camera well when I took the photos.
I found it on Kijiji, which is similar to Craigslist. I did have to go out of town to pick it up.