I'll get harness with a plethora of wires at TPF.
In the meantime, I got some 18ga off Amazon in different colors.
I'm about to jumper off of two flashing lights to two LEDs in a custom topper I'm making for Mystic (1980 SS Bally). 18 gauge is bigger wire than the rest of the lighting in the machine. The rest of the lighting is incandescent. The only LEDs will be the two in the topper, to keep the power drain down and because I need a colored lamp.
The wires will be maybe 36" long. Is the 18 gauge ok or should I go buy thinner wire?
In case anyone's interested... the topper will be a "crystal ball" that will light orange when the eyes are lit and white when the pyramids are lit. Now that I've successfully soldered some new lamp sockets and some switches, I'm mad with power.... Mad I say... mwaahahahahha