Hi guys, I'm using the LED calculator on Metku mods site to figure out what resistor to use for some LEDs and I need a quick check... I have 12 LEDs wired in PARALLEL as they are going to be running from 3 AA or AAA batteries (1.5v batt times 3 = 4.5v total power supply). The LEDs have a forward voltage of 3.2 - 3.6v so I guess suppling 3.5 v to them would do me. Now here's the question, do I use a resistor to take the current down to 3.5v as if there were only 1 LED? This would require a 26ohm resistor. OR do I believe what the LED calculator says and use a 2.2 ohm resister - the figure changes depending on how many LEDs are in the parallel connection. This doesn't make sense to me as I thought the voltage would be shared across all the LEDs meaning you would need the 26 ohm? Also, if the calculator is correct, can I get away with having no resistor since it's such a tiny value (2.2 ohm)? thanks in advance guys!