It uses a lot of solder so be prepared for it. Heat shrink tubing is also handy to have. The plastic coating on the wire will melt and pull back some, the heat shrink will cover it and give a good looking connection. I like to hang them from the wire with the terminal facing down like a cup. Apply the heat to the bottom of the terminal only so the solder will be sucked in, keep filling till it runs over the top. Do not force cool or move till it cools off. To hold terminal on before soldering, spread the wires out or crimp it in the vise. Joe