Choke light on the dash...

[xtreme80]

I have a 1980 C10, 350 with an edelbrock carb & electric choke. While taking my dash apart to replace some bulbs the other day, I noticed that one of the indicator lights on the dash was "Choke".

This light has never come on for me, and I never even thought to replace this bulb too. My question is, when should this light be on? Is this a light that will come on when the engine is cold and the RPM is higher, letting me know that the choke is doing it's job?

I'm going to see if it's a bad bulb under there today, but I was just curious as to the function of this light.