I have a desklight from around 1980. (This light lasts forever, I love it, and they don't make it anymore. Each bulb lasts for 10+ years.) It uses automotive lightbulbs, like you would put in a blinker light or "in reverse" light. The base feels heavy like it is some type of transformer possibly. Since I have to buy the lightbulbs in the automotive section of my store, am I correct in assuming it uses 12V DC light bulbs?
Which would also mean it converts 110v AC to 12v DC. Correct?
What would happen if I put my multimeter in AC mode and hooked it up to the light socket? Would that hurt the meter if the light socket was putting out DC?
How about if I put the meter in DC mode? Would it hurt the meter if the light socket was generating AC?