F59PH CAB LIGHT

Well, if it's driven by AC, a series diode would do it.

Or if easy to replace, a higher voltage bulb would do it.
Or if driven by a constant-voltage board, a series resistor would do it.
I think it depends on what kind of electronics you have.

I was kinda' fishing for exactly what we were working with here.

It was asked for more info. I am using MTH DCS with 18v track power. I thought I read one time that you could paint the bulb to dim it down ? I don't understand what a higher voltage bulb would do & am not to anxious to get involved with resistors.
ROZY 205

It'll be a lot easier to use a resistor than getting involved in painting the bulb. Since you're using DCS with PS/2, why not ask in the MTH DCS forum here, they'll know what bulb is in those. I know that MTH has used low voltage bulbs in some of their stuff, I found 1.5 volt bulbs in the PS/1 units I worked on. Others had 12 volt bulbs.

What's the exact MTH model number of that unit? Perhaps we could look it up on the MTH site.

Aluminum foil wrapped around part of the bulb?

quote:

I don't understand what a higher voltage bulb would do

I will explain what the voltage rating of a bulb means:

A 12 volt bulb will glow at 100% brightness at 12 volts.

A 12 volt bulb will glow more dimly at 6 volts.

A 24 volt bulb will glow dimly at 12 volts.

Got it?

If we can get the info from you that was initially mentioned, about whether or not you are using AC, then the diode in series is the most elegant and simple solution.

If the lamp is being driven by a constant-voltage supply, then the resistor is the simplest solution. Why do you not want to get involved with a diode or resistor?

It is hard for me to believe that anyone would actually recommend coating a lamp or wrapping a lamp with aluminum foil.