Home › Evil Mad Scientist Forums › Ask an Evil Mad Scientist › AC power to LEDs › Re: AC power to LEDs
November 17, 2013 at 4:31 pm
#21565
Lenore Edman
Keymaster
First, do not hook them directly to AC! You will need to use an AC to DC converter. It is most efficient to start with a low voltage, something like 3 V if you can find it, but likely 4.5 V or 5 V will be easier to find. Yes, you will need to use current limiting resistors for each of the LEDs. You can read about how to determine the resistor value here: