Reply to "Another LED constant lighting question for passenger cars . . ."

gunrunnerjohn posted:

The reasoning why low values kill the LED's is simple Greg.  Since the circuit supplies constant current, a very low value resistor shunt will simply use all the current available long before the voltage across the load gets high enough to light the LED's.

I actually thought any resistor connected across the supply would cause a short and kill the LEDS.  I was surprised when the higher value resistors didn't cause a short.  See I learn new things all the time around here.