HID Xenon Wire Relay Harness 9006 9005 H10 9145 9055 9012

Plug-and-play relay harness for aftermarket HID kits—powers your ballasts directly from the battery to protect factory wiring and eliminate voltage drop issues.

Stop Flickering HIDs and Protect Your Factory Wiring

If you've installed an aftermarket HID conversion kit, you've probably experienced the frustration: flickering bulbs, dim output, or even premature ballast failure. The culprit? Your factory headlight wiring wasn't designed to handle the power draw of HID ballasts. Running HIDs through factory circuits creates voltage drop, overheats connectors, and stresses your vehicle's electrical system—leading to performance issues and potential damage.

This 9006 HID Relay Harness solves the problem by routing power directly from your battery to your HID ballasts through a heavy-duty relay. With a factory-style plug that connects to your vehicle's headlight socket (no cutting or splicing), this harness provides clean, stable power while protecting your original wiring from overload. The result? Brighter, more reliable HID output and peace of mind that you're not frying your electrical system.

Key Features at a Glance

• Factory Plug Connector: Plugs directly into your vehicle's factory headlight socket—no bare wires to splice or tape
• Direct Battery Power: Draws power straight from your battery through a 40A heavy-duty relay for consistent voltage delivery
• Standard 9006 Ballast Connectors: Two output connectors plug directly into most aftermarket HID ballasts
• Fuse Protected: Built-in fuse safeguards your electrical system from shorts or overloads
• Waterproof Construction: Sealed relay and connectors resist moisture, road spray, and underhood heat
• 10-Year Service Life: Heavy-duty components ensure long-term reliability without overheating or failure

Installation: Plug-In Simplicity

Connect the factory-style plug to your vehicle's headlight socket, run the power wire to your battery's positive terminal, ground the black wire to chassis, and plug the ballast connectors into your HID kit. It's a straightforward install that takes 30-45 minutes per side with basic hand tools—no electrical engineering degree required.

Why Direct Battery Power Matters

Factory headlight circuits are designed for 55W halogen bulbs—not 35W HID ballasts with high startup current draw. When you run HIDs through factory wiring, voltage drop occurs, causing dim output, flickering, and premature component failure. By drawing power directly from your battery through this relay harness, you eliminate voltage drop, stabilize output, and extend the life of both your ballasts and your vehicle's factory wiring.

Your Benefits at a Glance

• Brighter, More Stable Output: Direct battery power eliminates voltage drop for consistent HID brightness
• Protected Factory Wiring: Keeps high current draw away from your vehicle's original headlight circuits
• Extended Ballast Life: Clean, stable power reduces stress on ballast components and prevents premature failure

Compatibility & Package Details

Compatibility:

• 9006 HID Conversion Kits
• Also fits: 9005, 9012, H10, 9145, 9155, 9140, 9055 bulb sockets with adapter
• Works with most aftermarket HID ballasts using standard 9006 connectors

Package Includes:

• 1x HID Relay Harness (Powers One HID Ballast)
• Factory-Style Vehicle Plug Connector
• 2x Standard 9006 Ballast Connectors
• 40A Relay with Fuse Protection
• Installation Instructions

Important Notes:

• One relay harness required per HID kit (order two for dual-bulb systems)
• Does not resolve computer error messages or DRL (daytime running light) errors
• Verify your bulb socket type before ordering to ensure correct fitment