What resistor and method should I use to string 12 led's in parallel from a 5v source?
I'm trying to figure out what resistor I should use to string 12 blue led's in a ring from a 5v source (like this except instead of 8, using 12: http://www.llamma.com/xbox/Mods/xbox_jewel_led_mod.htm). The specs that I have on the packaging of the led's are: MCD 4000~6000 and VF: 3.0v~3.2v. I read 2 different ways to do this, one (the easier way which I was leaning towards) was to use one resistor for the entire parallel series. The other way was to use an individual resistor for each led. What do you recommend. Can I get away with doing it the easy way, and if so, what resistor (ohms, wattage, and tolerance) should I use? Thank you.