Adrian wrote:

I'd say that the OP doesn;t need anything like that amount of power -
and is likely to do more harm than good with an over-powerful iron.

My experience is the other way around. Too small an iron does more
damage than a large one. A large iron can solder the spot without
transferring a lot of heat into the surrounding cane. A small iron is
held in place for much longer and more heat transfers where you don't
want it.