LED Running Lights, Anyone have them? Options

[jordisonjr]

Anyone have LED running lights in there cars? If so, how'd you get them to work?

I got mine in the mail today and went to install them.
I did the PS first, amd it lit up fine with the LED in the PS and a Filament bulb in the DS.
So I went to change the DS and when I get the LED in, both PS and DS did not work.
Checked all the fuses and they were fine, and when i put both filament bulbs in they both lit up.

Not sure why this is happeneing but Im guessing it has something to do with the small amount of power the LEDs take compared to filament bulbs.
Anyone have any input, or a solution to get these to work? Thanks.

[ricochet1490]

do you have a multimeter? If so use it. If not, buy one. When you do go to google and look up led specifics.

Did you get the 3.5mm leds? if my memory serves me correctly from my xbox modding days, they use 3.3 V per bulb....

A little electrical engineering tells you that V=IR (voltage = current*resistance) and that voltage is ALWAYS the same when the bulbs are hooked up in PARALLEL, and voltage is reduced everytime it passes through a light or resistor etc. ... aka it drops if you hook them up in SERIES.
http://diy.sickmods.net/Tutorials/Case_Mod...D_Wiring_Guide/
That website has a nice diagram showing the difference and how 1 resistor can be used to do a string of Led's.

measure the resistances of the system with the filament bulbs in by hooking the multimeter up in parallel with respect to the filament bulbs. Replace the bulb with the LED and remeasure. The result will tell you what you need to do.

But I'm willing to bet not enough current is being eaten by the led's and something is tripping out.

Good luck