Using LEDS

[prandi]

hi!!!i am trying to mod my comp case using some leds,etc,,.which voltage is suitable 12v or 5v.i am using 3 leds in parallel :confused:

[stlouis1]

you'll probly want to get some resistors so you dont burn them out. you need to use the 12v cuz the 5 volt is a - circuit so it wont power the led's. find an electronic shop in oyur town n ask what kind of resistors you would need. they migth even be able to get u the led's to and bundle them with the right resistors for you

[prandi]

Wat value of resister should i use to operate leds on 1.5V frm 5V or 12V

[-=CrAnSwIcK=-]

yeah, i would like to know this as well...i actually had an LED blow up on me, and it was pretty loud...

[MD_Willington]

Courtesy: Lee Garbutt

LED Guide - Basic Theory and Applications
http://www.leesspace.com/LEDs.htm

[AKHandyman]

Courtesy: Lee Garbutt

LED Guide - Basic Theory and Applications
http://www.leesspace.com/LEDs.htm
Nice read ...very helpful ... I have taken a few electronic courses in my time and I understand quite well. Thanks!!:D

[prandi]

hey thanx ---itwas very helpfulll article:)

[DarkHeavens]

hmm the kinda complicated wiring just for an LED that guy uses....I just use the apropriate resistor soldered on the + of the LED (longer leg) and wire it off a 12 volt line....never ever had an instance where one fried to put a R2 in the wiring....
heres a good calculator for a single LED and has a link for parallel (multiple LED's)
http://led.linear1.org/1led.wiz