I have a bit of a dilemma, and for the life of me I just can't remember my theory. I have LED's that are plumbed with their individual resistors to run on 12VDC, I want to plug them into a car to make some unique lighting, for the dashboard lighting i'm using LM7812 Voltage stabilisers to maintain a 12V constant, however, I want to use LED's in several other places around the vehicle. Would I need to have the voltage stabilised everywhere where LED's are used, or would simply vehicle voltage be tolerated? An alternator typically charges at around 13.8 to 14.2 VDC, and battery voltage would drop to between 9.2 to 10VDC.
Anyone have any ideas?