LED Taillights Problem

[wpoll]

Originally Posted by Clavurion

LED's can be dimmed (of course not below the diode threshold voltage) but the voltage should be stable, not pulsing PWM like from LCM. Some capacitors might do the trick.

I'm trying to keep my electrical explanations "conversational" rather than go full-on "electrical engineer" on everyone!

But yes, of course.

While caps would "average" or smooth the PWM pulses, reducing the forward voltage on an LED doesn't produce a brightness variation in the same way as would occur with an incandescent lamp, so the system would need to be reconfigured to give good tail and brake values.

Which I think can be done via BMW Scanner but I'm not familiar with what PWM values result in good brightness levels for LEDs.