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Old 05-18-2021, 10:00 AM   #21
Pilotdave
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Join Date: Oct 2010
Location: Grafton, MA
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Default Re: LED Tail Lights - Adding Resistors

Synchro909, the turn signals are combined with the brake light in the tail light units.

Patrick, the front directional lights use incandescent bulbs. There are no indications of the candle power or wattage on them, however, and thus far I haven't been able to locate a source for higher power bulbs.

The reason the resistor is connected in parallel is that doing so lowers the resistance in the directional circuit. Less resistance translates into higher current flow which is what the flasher unit needs to slow down the flash rate.

I have now run a wire from the battery ground point to provide a ground point at the tail lights so don't need to be concerned about a faulty ground for them or the resistor. Still getting the same fast flash rate. This implies that the load resistor has too high a R value - I think!

Some ideas:
1. find a load resistor with a smaller R value - or perhaps double up the load resistors to effectively create a lower R value.
2. Find an electronic flasher that actually works with 6v, +ground systems.

Other ideas would be really welcome!

Dave
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