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resistors, capacitors and or relay?

Printed From: the12volt.com
Forum Name: Lights, Neon, LEDs, HIDs
Forum Discription: Under Car Lighting, Strobe Lights, Fog Lights, Headlights, HIDs, DRL, Tail Lights, Brake Lights, Dashboard Lights, WigWag, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=111458
Printed Date: May 14, 2025 at 3:26 PM


Topic: resistors, capacitors and or relay?

Posted By: matt400
Subject: resistors, capacitors and or relay?
Date Posted: February 10, 2009 at 12:31 AM

This question pertains to late model Chrysler products with PWM headlamps..

When changing to HID I have seen several methods to provide a good power source to the ballast and fool the vehicles "lamp out" warning-

  • separate harness, relay  and one capacitor 470uf 35v at the relay
  • separate harness, relay and a resistor at the trigger
  • 2200uf 35v capacitor on each ballast input

What is your prefrence and why?



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Matt



Replies:

Posted By: Tripnbeats
Date Posted: May 28, 2009 at 9:42 PM
every single car is different and it all depends on the voltage. 99% of the time on audi vw chrysler and a few other makes u can use 4700uf 25v electrolytic caps in parallel to the power supply to the ballast. on cars like beemers u need resistors n relays on each side of the car. th resistors at like light bulbs....it tells the car that theres a bulb there....but in turn its really turning on a relay posted_image



Posted By: smoke14eva
Date Posted: June 07, 2009 at 3:14 PM
how do i wire the relay for the genarator to have more sufficient power?

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smoke14eva



Posted By: i am an idiot
Date Posted: June 07, 2009 at 3:30 PM
We do not understand your question, what exactly are you wanting to do?


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