Electrical Question - Front Turn Signals

[Tkklemann]

In my spare time, I screwed around with the front turn
signal lights. I tried successfully modifying them utilizing
194 peanut 4 LED bulbs from the local parts store. Now,
the question... The original bulb is 12V 21W, and the
peanut is a 12V 5W. In changing the bulbs, I noticed
that with the 5W peanut LED's, the signals flashed
much faster. I understand that there is a difference
in the amperage and wattage, but would this be a
problem? Is there a way that I can correct it? I
really want to make it work correctly, because it
looks really cool....

[CloNeGTS]

Your problem is that a regular light bulb has a resistance to it, while the LEDs for all intensive purposes do not. The lack of this resistance is what makes it blink faster. Usually that resistance slows the rise in current flow before the relay flips, but now that current flow is faster, the relay has to flip faster.

You could fix it by adding a inductor of the same resistance as the original lightbulb. Go back and look thru your EE notes.

[Tkklemann]

Yeah, I was actually thinking of pulling out my old
EE text book. I am thinking that what I would have to
do is make the current flow thru the different bulbs be
the same, so I would probably have to add an inline resistor
to the setup to get the current flows the same... Am I really
off-base here?