I would recommend using the wires that came with the coolrunner. If you need some nee ones, use the ones in the slim wires side of the pack. I've not used any other type of wire for my installs.
The supplied wire is extremely easy to solder to the points, it's why it's in there
Tip 1, tin the end of the wire, flux the point to solder to, heat point then touch with some solder, you should now have a nice little solder point. Touch iron on point to solder to, add wire to point, remove iron. Check joint. 3 seconds should be more than sufficient in each point with the iron.
Tip 2. Watch Martins soldering vids
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