The pictures and description show copper wires so I was confused by the silver color of the wires on the ones I received. For fear of joining dissimilar metals this led me to a magnifying glass and some Googling and as far as I can tell it's copper (18/2AWG), it's just tin plating. It seems certain that there shouldn't be any problems connecting bare copper, and (good) I learned something new, but (bad) I had to take the time to learn it. Also, while not listed in the description, my box came…