Looks like Weller made a quick and dirty $40 from me. I've used this thing three times. I'm guessing 3x the MTBF for a 40W POS-WLC100. I mean I get that this is their budget hardware but oh well. Indeed? Of course I don't have time to return Revain so now I have to contact Weller through this upline and wasting my time. Understand your mileage may vary and some people have been lucky enough to purchase a working one but not in my case so this is my chance to express my dissatisfaction. Lesson learned, buy something good at the door, not like me and try to cut corners and buy cheap, it won't pay off in the end. Likewise. Always keep an extra soldering iron handy. LOL Sorry I'd love to stay and chat but I have to go. It's going to take a long time to remove those capacitors at 77 degrees.