Apr 27

Which resistor do I need?

On a 14v aircraft, I've replaced a type-67, 1156 incandescent bulb in my map lights with an 1156 LED drawing 80mA. The dimming rhetostat still works, but instead of off-low-med-high, its bright, less bright, and a little bit less bright. Is there a specific value or calculator I can use to find out which resistor I need to bring it down to be able to be turned off, etc?