DADS50:
I bought them from Classic Parts of America. I found a note that indicates the wires are as you described.
BELTFED:
The voltage output of my battery charger is 8.0 volts. The output of my generator (with the engine running) is 7.9 volts.
The following voltages were measured using a multimeter with the negative probe attached to a wire that was inserted between the negative battery cable and the battery post.
With the engine off and the lights on, here's the voltages I've measured:
Battery: 6.2 volts
End of positive battery cable where it attaches to the starter: 5.6 volts
Hot wire feeding light switch: 5.3 volts
Tail light fuse terminal: 5.0 volts
Tail light wire at tail light: 4.8 volts
With the engine running, the voltage at the tail light wire is 6.0 volts.
Are any of these voltage drops significant?