PR: Proprietary Items Alternative Rear Light/Stoplight Wiring

[Texas John]

If you run a resistor in the lighting circuit leading to a single filament bulb you get a low intensity (tail) light; a parallel circuit through the stop light switch feeding the same bulb with higher voltage will give you a high intensity (stop) light - both from one single filament bulb. Not saying that is what Vincent did.

 

[Marcus Bowden]

Not saying that is what Vincent did.

But that is what I'm doing now with LED's

 

[Texas John]

Is this working for you? Incandescent bulbs get brighter when given higher voltage. LED bulbs have voltage regulator circuitry that drops the input voltage (6 or 12 volts +- and some also adjust polarity) down to that which the actual LEDs require (around 3 volts, with red LEDs operating at a different voltage from white ones). What I am getting at is that different voltages may give the same brightness, and if under some threshold, you will get no light at all.