DIY: Headlight LED's and blackout

Caravanshaka · 01-25-2011, 09:40 AM

Quote:

Originally Posted by NISMOFO

As the OP stated in his disclaimer, it doesn't hurt to use more resistors. I believe the rule of thumb is one resistor per LED. He's got 3 LEDs to one resistor in this setup and over time I believe that can cause issues. I only mention this because I own his car and I have these exact lights in them and currently I have 3 of the LEDs flickering. I'm fairly sure its the resistor, but can't be 100% yet.

I have been planning to trade these lights out for a stock set since day one, but I just haven't gotten around to posting it yet.

Actually, if you go to any LED resistor calculator site, they all have wiring schematics for multiple LED's per resistor, with 3 LED's per resistor being common. My uncle is an electrical engineer that works with LED's on a daily basis, and he is the one that supplied me with the wiring schematic, which I verified to be correct on a couple different resistor calculator sites.

I think the issue with flickering is due to a loose connection somewhere in that string of 3, probably a post that broke off of an LED or resistor that is still held in place by the heat-shrink tubing allowing it to have a bad connection.

NISMOFO · 01-25-2011, 05:24 PM

Quote:

Originally Posted by Caravanshaka

Actually, if you go to any LED resistor calculator site, they all have wiring schematics for multiple LED's per resistor, with 3 LED's per resistor being common. My uncle is an electrical engineer that works with LED's on a daily basis, and he is the one that supplied me with the wiring schematic, which I verified to be correct on a couple different resistor calculator sites.

I think the issue with flickering is due to a loose connection somewhere in that string of 3, probably a post that broke off of an LED or resistor that is still held in place by the heat-shrink tubing allowing it to have a bad connection.

I think you're 100% right. I now stand corrected. I don't think there is anything wrong with the way these were wired. I think I just hit a few too many bumps in the road...

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