Relay Harnesses and Wiring

Many HID bulbs require a relay harness to function properly. Sometimes adding a relay harness will allow you to overcome CANBUS challenges also. We have wiring for light bars, flexible LED strip lighting and HID conversion kits.

Street legal in the USA for Fog Light use.  Not compliant with DOT / FMVSS108 and not street legal in the USA for Headlights.  Certain specialty vehicles strictly limited to off-street use and not having DOT registration or license plates may use these products exclusively off-streets.  International street legality varies by country.  For detailed clarification on street use, go to  Note: This usage regulation is not unique to GTR Lighting bulbs, ALL LED and HID bulbs from all other brands, regardless of marketing claims, are prohibited from street use in halogen headlights in the USA.  For improved headlight street use we recommend full assembly replacements. 

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