Goot Soldering Ironszsolderinggoot101
100 or 80 Soldering Iron with chisel tip.
80w has a 5mm chisel tip, recommended for copper foil work.
100w has a 7mm chisel tip, recommended for lead came work.
The 100 are labelled 38w quick-recovery, so they are equivalent to 100w and more energy efficient. 80 are labelled 32w