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Black wiring harness with relay and fuse connectors on white background

GP Thunder

GP Thunder HID Relay Wiring Harness 12V 35W/55W 40A 30A Automotive Specialty Lighting

SKU CH-HBEH-RYT35

Delivers stable battery power to single-beam HID ballasts via a 40 A relay and 30 A fuse, eliminating flicker on 35 W to 55 W kits

  • TypeHID & HID Kits
  • Switch IncludedNo
  • QualityPerformance
  • Stable HID operation from direct battery feed with 40 A relay
  • Flicker-free lighting by bypassing factory halogen circuit
  • 30 A fuse protects ballast and vehicle wiring
  • Supports 35 W to 55 W single-beam HID kits
  • Fits H1, H3, H8, H9, H10, H11, 9005, 9006, 5202, 880, 881, 9140, 9145

Universal HID Relay Harness

The GP Thunder HID relay harness is a universal single-beam wiring kit built for 12 V automotive electrical systems. It connects directly to the vehicle battery to supply stable current to HID ballasts rated from 35 W to 55 W. The harness targets drivers who experience flickering or voltage drop when converting factory halogen circuits to HID lighting.

Build Integration Requirements

The harness includes a 40 A relay and a 30 A fuse to protect the HID system and the vehicle wiring. It draws power straight from the battery, bypassing the factory headlight circuit that was designed for halogen bulbs. Installers must route the fused power lead to the battery positive terminal and connect the relay trigger to the original headlight switch wire for each beam being upgraded.

Included Components

One complete relay harness assembly is supplied in the package. No separate switch, ballasts or bulbs are included. The kit covers single-beam bulb types including H1, H3, H8, H9, H10, H11, 5202, 880, 881, 9004, 9005, 9006, 9007, 9140 and 9145. Buyers needing dual-beam H4 or H13 configurations, or a complete HID kit with ballasts and bulbs, will require additional parts.

Highlights

  • Stable HID operation from direct battery feed with 40 A relay
  • Flicker-free lighting by bypassing factory halogen circuit
  • 30 A fuse protects ballast and vehicle wiring
  • Supports 35 W to 55 W single-beam HID kits
  • Fits H1, H3, H8, H9, H10, H11, 9005, 9006, 5202, 880, 881, 9140, 9145

Specifications

TypeHID & HID Kits
Switch IncludedNo
QualityPerformance

Questions about this item

Will the 40 A relay and 30 A fuse handle continuous draw from a 55 W ballast without overheating?

The harness uses a 40 A relay and 30 A fuse rated for the 35 W to 55 W range, drawing stable current directly from the battery to prevent flicker.

Does the relay or fuse generate noticeable heat or noise during all‑day operation?

The relay and fuse are standard automotive components; they run silently and stay within normal temperature limits for 12 V 35 W‑55 W HID loads.

Which bulb‑size connectors come pre‑wired so I can plug straight into my H11 low‑beam sockets?

The harness fits all single‑beam sizes including H11, 9005, 9006, H1, H3, H7, H8, H9, H10, H13, 5202, 880, 881, 9004, 9007.

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