Reminds me of old timer electricians checking for live 120vac with their spit wetted fingers tips. (no joke)
(I don't know if spellcheckers are in FFox, or hoopla, but this one is awful. When I can out spell a program 4-5 times a day, it's really bad. I write phonetically then correct myself. "Wetted" is a 2cnd grade word. The red line under it; a joke)
Heat is easy and cheap never nicks; very very important on small wire.
Last winter, I bought a single bulb from R. Shack a bit larger that a grain of wheat bulb, because they had run out of the GOW bulbs..AGAIN! [maybe they would actually sell electronic parts if they made an effort at restocking them weekly?]
Anyhow this one always came with insulated wire, machine soldered on (and possibly even insulated after than process if made today).
The new wire was so delicate, it often broke before the insulation gave way. (using my nails could cut both too)
Heat stripping was my only option.
Then I found you couldn't solder it. The heat melted the wire insulation far too easy. That,then caused the solder to run from the wire too. Flux couldn't cut the contaminant quickly enough. A useless part after being redesign by penny pinchers (<Spl chk again). I returned the bulb with no wire left. "But you ruined it". That was repeated back to the manager word for word, as my explanation of why I was an idiot, began... "Sorry, but you ruined it..."
I think this type of wire is for use with micro- plugs that use a small flat plate/tab as a sprung, pressure connection.
Anyhow, ..Good luck