GTR Lighting GTR.H121 Resistor T-Harness 9004/9007 50W 6 Ohm CANBUS Error Eliminator

The GTR Lighting GTR.H121 is a plug-and-play 50W 6-ohm resistor T-harness designed specifically for 9004 and 9007 bulb applications. This essential accessory eliminates CANBUS errors, flickering, and "bulb out" warnings that commonly occur when installing aftermarket HID or LED headlight systems in modern vehicles with computer-controlled lighting systems.

Key Features:

• 50-watt, 6-ohm load resistors simulate factory halogen bulb power draw
• Plug-and-play design with 9004/9007 style connectors—no cutting or splicing required
• 13-inch wire length provides flexible mounting options
• Eliminates CANBUS error codes and dashboard warning lights
• Prevents flickering and random shut-offs with aftermarket lighting
• Compatible with both HID and LED headlight conversion systems
• Sold as a pair for both headlight assemblies

This harness works by providing the electrical resistance your vehicle's computer system expects from traditional halogen bulbs. When you upgrade to lower-wattage LED or HID lighting, the reduced current draw can trigger error messages or cause bulbs to flicker. The inline resistors restore proper current feedback to your vehicle's body control module, ensuring stable operation and error-free performance.

Important Installation Note: Load resistors generate significant heat during operation. Mount resistors securely to metal surfaces or heat-resistant areas away from plastic components, wiring, and flammable materials to prevent damage.