HID Headlight Question.
#1
HID Headlight Question.
I just installed 8000k HID headlights and fog lights in my truck. I ordered 2 relay harnesses with them but I didn't install them; I just plugged the HID's into the stock wiring. Should I have also put the relay harnesses in? and what do the relays even do? I haven't been active on this site in awhile but I will update my photos and page soon!
Thanks,
~Austin
Thanks,
~Austin
#2
the purpose of a relay is so you can run a heavier gauge wire to an accessory, where the original wiring is not heavy enough. instead, it just uses the original wiring as a TRIGGER for the heavier gauge wire, the relay has a little electromagnetic switch thing inside it that flips when it detects current in the "signal" wire.
I don't know if your HIDs will draw more current than stock lights, depends on the kit but I'm just guess it doesn't. I'm really not sure but that IS what a relay is for in any circuit
I don't know if your HIDs will draw more current than stock lights, depends on the kit but I'm just guess it doesn't. I'm really not sure but that IS what a relay is for in any circuit
#3
The relay harness does a couple of things.
It isn't so much a wire gauge issue, considering HID's are typically 30-35w draw compared to 55-65w halogen draw. It's more so a reliability issue the relay harness is solving.
Generally, fogs don't need a relay harness. I always suggest it for headlights though. Since they're on two different circuits from the factory(you have a left and a right side fuse).
It isn't so much a wire gauge issue, considering HID's are typically 30-35w draw compared to 55-65w halogen draw. It's more so a reliability issue the relay harness is solving.
Generally, fogs don't need a relay harness. I always suggest it for headlights though. Since they're on two different circuits from the factory(you have a left and a right side fuse).
#4
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