Looks like a great addition to your arsenal of surface mount tools. I was tired of using x2 iron when replacing caps or resistors. Obviously it's not 220v. It's essentially x2 independent irons with a tweezers grip and a connector. Each heater is about 15 ohms cold, should be about 30 watts from 24v. Thermocouples for sensors appeared, like most later models, they have separate wiring, not like the T12. Two heaters share a common lead, and thermocouples also share a common lead. To simplify - I'll probably wire both in parallel and connect to my 5-pin station. I don't care if the individual temperature is off, the average should be ok, still better than two irons. A 75W station should be able to process them in parallel. Thermocouples connected in parallel provide an average temperature. The chassis has a ground/spike pin to provide ESD protection. not aligned. I need to adjust/bend them. never mind