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The Error Free LEDs were originally intended for vehicles that have a bulb health check. Some vehicles (especially those with CAN busses) will blip a ~1V pulse across the bulb to see if a measureable current passed, if it did not, it'll throw the Lamp Failure Warning on the dash board...

It won't matter. The voltage regulator gets its power from the battery+, which is the same place the gen light gets its power. If the voltage regulator doesn't take action against the over-voltage and shut off the field by letting it desaturate to regulator ground like it should, the LED or...

"Error free LEDs" (eBay search term) should work here. If the point is to get a bright pure color out you can still do the LED. An "Error Free LED" basically puts a resistor across the whole LED circuit of nearly the same resistance as a bulb filament- and a resistor is non-directional.

With the wear and tear you apparently do to yourself - I think you've earned a few "easy ways" :beer: It won't affect the efficiency much at all - the part of the rheostat that touches the coil (which is aptly called the "wiper") is designed to mechanically clean the contact surface as it...

EL is as easy to dim as LEDs - use PWM. EL is driven by AC voltage - usually around 90-120V AC, and the light gets better with higher frequency. Incidentally you can build a circuit that generates both an AC pulse (square wave) and does PWM with only a few parts. You can do a 555-timer based...

I missed this thread this weekend. Nuts. So Sharecropper, I have a solution for you. Yes, LEDs require a specific voltage to overcome the semiconductor barrier, but once they get past that threshold they will conduct power to their own destruction. As others have said you need something to...