Introducing the HD Relay Wiring Harness Kit – your ticket to a cutting-edge upgrade for your Ford Super Duty's headlights! Say goodbye to outdated halogen headlamps as this kit seamlessly adapts 2017-19 Super Duty OEM LED headlights onto your truck, giving you that modern Super Duty look you crave. No need for complicated modifications – our plug-and-play solution ensures a hassle-free installation, allowing you to control low and high beams with ease using your original cabin controls. Experience the next level of headlight performance with the relay harness, designed to preserve OEM functionality without any flickering or disruptions. Crafted with precision, the harness boasts abrasion-resistant Techflex mesh sleeving and an anodized aluminum relay shell for that factory-fresh appearance under your hood. Upgrade to excellence today and illuminate your journey with confidence!