HID relay harness for 9005 or 9006 HID Kit
What is HID relay and harness kit?
HID relay and harness kit allows your HID kit to draw power directly from the battery to the HID, instead of using your headlight plugs on your factory harness as a power source, your factory harness then become a power signal to turn on and off the HID kit.
Why do I need this harness?
On a lot of domestic applications, or older domestic and import applications often do not provide enough voltage to ignite the HID kit, by using a HID relay harness kit, this ensure enough voltage going to your HID kit so that it can ignite properly.
If you HID kit require more than one try to turn on, chances are your factory headlight harness aren't providing enough voltage to your HID kit, and this harness maybe your solution, assuming that your HID bulbs or ballast are not defective.
Vehicles usually require HID Relay Harness:
Older model Ford, Chevy, and Dodge
Older model Toyota (known for only 1 side of the HID bulb fire up)