I am going to use automotive, 12v bulbs for a special project of mine and have a couple of questions on how to dim the bulbs with a potentiometer. The bulbs are these: **broken link removed**
My question is...
1. Seeing that these bulbs are 3.78 watts, do I need to make sure that the potentiometer I use to control the voltage into the bulb is at LEAST a 4 watt potentiometer?
You mention "parallel" - keep in mind that the current for each bulb must be handled - so the number of bulbs will determine the power - if all powered from the same control.