Once ahead: the part fulfilled its purpose. It is not a professional tool, but for the casual hobbyist (-löter) it is perfectly adequate. Because of Product photos I had expected worse but that part seems to me amazing valent (EUR3,55!). For me, as a class Gelegenheitslöter and I can only recommend the part due to the price / performance ratio. For around 20EUR, I now get a soldering station, a Lötpumpe and solder. Not a lot of money, so that I can dedicate this part of DIY me now.