Power Delivery: A relay harness is designed to deliver steady voltage to your HID ballasts directly from the bike's battery. Nobody likes a flickering headlight, so why risk it? Factory headlight outputs are really only designed to power a halogen light bub, not a HID ballast.

One of a Kind: The Morimoto H4 Single-Lamp Motorcycle specific harness is the first truly high quality relay harness designed for retrofitting single headlight motorcycles with xenon projectors. We're proud to offer it!

What's the Difference: The wire lengths are designed to be more ideal for the layout on a motorcycle. Unlike a normal harness, which is designed for a car's engine bay that has to be modified, this one should be ready to go out of the box.

Light Up: Each harness will power one HID ballast and one bi-xenon projector/bulb solenoid, perfect for a bi-xenon projector retrofit into a single headlight on your Motorcycle.

Don't Skimp: As an important part of a finished headlight upgrade, don't skimp out when it comes to your wiring. The long list of features on the Morimoto MotoCycle Relay harness is easily worth the small premium over the eBay $10 special.

Work of Art: Aside from being a technical masterpiece, it's also a work of art. With its braided TechFlex insulation and clear relays mounted on orange bases, it will surely look factory-fresh routed through your fairings.

Confidence: Order with confidence when purchasing through our website. The products offered have been thoroughly tested to make sure they meet our strict quality standards to ensure the best reliability and performance. We always provide honest feedback on products and helpful tips for any project due to our extensive experience with all makes and models. We offer competitive pricing, fast shipping, and the latest and greatest products from the top manufacturers. Contact us today with any questions; you won't regret it!