The 25-year-old, who is not available for Wednesday's Premier League trip to Bournemouth, arrives at Molineux after three years in Germany, where he scored 24 goals in 60 games for Stuttgart.
He said: "I'm two metres tall, but also not bad with my feet. I'm just hungry to score goals. I want to play good football and score many goals.
"I want to play attractive football. I'm a team player, I want to help the team, that's the most important thing in the end. When the team is looking good, I'm looking good as well. This is my aim for the upcoming matches.
"Everyone tells me the Premier League is the toughest league, it's the NBA of football. I'm just excited to prove myself against the best because in this league the best players are playing.
"I want to develop as a player, as a person, and want to get as soon as possible to score, to show myself, and I'm really happy about it and looking forward to it.
"I'm happy it's all been finished. It was a long, tough day, but in the end everything went well. I'm really thankful and really happy to be here. It was the club that wanted me the most in the end.
"In my career, at my age, it's important to feel where the next step is and, in the end, I had the feeling Wolverhampton is the best step for my development.
"I had good talks with the coaches, and I met some players from the team. Everyone was so kind and so nice.
"I know that I won't regret my decision because the people were all so kind, they welcomed me and I'm looking forward to playing as soon as possible."