Originally Posted by BubbleheadMd
Why couldn't they be LED's? I have a Blue Sea Systems panel that came equipped with them. They definitely are LED's, also confirmed by the spec sheet and installation instructions.
Well, I was refering to the indicator (or Pilot) lights in the picture. If they were LEDs the wires would be color coded for polarity. Polarity doesn't matter for neon or incandescent, but it does for LEDs - they will not light with reversed polarity (they're diodes, and a diode only allows current to flow in one direction).