[Shotimes] OT: HID's and Headlight Relays?

clubairth@bellsouth.net clubairth@bellsouth.net
Sun, 25 Jun 2006 14:43:37 -0500


Ian:
 Thanks for the link and I found the answer in the FAQ!!

"Some people out there just aren't aware of the dangers with wiring HID 
straight off of your existing oem wiring. Should a relay be used to power 
HID, yes and always needs to be used. Why you ask perhaps? Your oem halogen 
equipped car was never designed or intended from the manufacturer to use or 
run high voltage/high current/ high amperage HID ballasts. Ballast draw a 
immense amount of amps upon start-up and could very seriously damage your 
wiring and not just at where its connected. We are talking serious damage to 
fuse boxes, ecu's, or worse could short and cause fires on very old cares 
that even have a hard enough time trying to power halogen. The reason why 
is, that when the ballast "demand" power, your car has to supply it from 
somewhere. Lets say its tapped into your oem headlight wire ok. Now you 
power up the ballasts, the draw current from your wiring, your wiring might 
not be up to the task so its needs help, it searches for a source and before 
you know it, you've now weakened not only one source but two now just to try 
and supply the ballast good clean power. This is why a relay harness is 
needed. A relay harness gets its power straight from the battery via relays. 
These relays are then wired to go to your ballasts now"




> For some good reading, go to www.hidplanet.com and
> read the forums and/or FAQ there.
>
> Ian