WIRING HARNESS RELAY (Diode Dynamics) - The Diode Dynamics wiring relay is a heavy duty harness designed to power your HID kit directly from the battery, rather than the factory wiring harness. This features a fully-sealed waterproof 40 AMP relay, 30 AMP in-line fuse, and all wires are sleeved with braided techflex for an attractive appearance and extra protection. The input wires are each a meter long, and the output wires are one meter and two meters, which means the wiring will be long enough for even the biggest vehicles.
Do I Need This? - The wiring harness relay is an optional part and is NOT required for operation of the HID kit in most vehicles. However, please be aware that some vehicles may require it for operation. In the rare case this is needed it is because the factory wiring harness cannot supply the appropriate voltage required to power up the ballasts and properly ignite the HID capsules. Symptoms indicating the Wiring Harness Relay is required in conjunction with your HID Kit would be inconsistency with the HID lights turning on or the lights going out after being turned on for several minutes. The issue of the HID lights turning them selves off usually requires you to switch them off and back on to get them to turn back on again. This Harness will fix these issues. However If you're unsure you can always purchase it and return it for a full refund if you don't need it.