I’m an engineer that’s been in that sort of situation. If it’s planned, you have the tools. Unfortunately, sometimes these things happen and it’s not planned. At that point it’s taken what you can get. A cheap fire stick will still do the job better than no fire stick.
Ive seen some really cheap irons that have zero controls, you plug them in and they operate at max power. Basically a wood burning pencil, really.
An engineer that has a project to show off at a trade show will have will have both a power switch and a temperature control on their soldering iron.
I’m an engineer that’s been in that sort of situation. If it’s planned, you have the tools. Unfortunately, sometimes these things happen and it’s not planned. At that point it’s taken what you can get. A cheap fire stick will still do the job better than no fire stick.