Just find a simple way to wire up a dimmer to the original bulbs. and make it any brightness you want, all the way down to just a glow. Watts=Volts x Amps. Just reduce the voltage.
Going from 12 volts to 6 volts will cut the wattage in half, and again at 3 volts.

Last edited by 4100 Fire Truck; 11/10/2018 10:29 PM.