gfretwell

These lamps run on 120 Volts DC so the Capacitor wouldn't work. hence the resistor option. ( loss in R's is about 1.2 Watts at 8 mA's)

I did trials with LED lamps on 230 Volts AC with a capacitor which had premature faillures of the LEDS.
Possible spikes on the mains had a different timeconstant and went straight through the Capacitor.
These were used as potential indicators on CT meters.
Also for this option a resistor was chosen. To dissipated one or two Watts in a resistor is better than having a 15 watt filament bulb lasting about 2 months.

The product of rotation, excitation and flux produces electricty.