[Guest]

Hi guys, I have fitted F4I clocks onto my RRS Blade. I am going to replace the bulbs in it with blue LED's. I ordered them and they have arrived, but included was a packet of resistors, for use with 12v application. Where do I put them? Between the pins on the led or in series with one of the pins?

 

[Guest]

Whats the ratings on the LED's that you purchased?

Not sure if this helps but this site has a full write up on doing this:
I-Hacked.com Taking Advantage Of Technology - Changing your backlight color of gauges.