DOT Approved 1999 GMC Sierra LED Headlights Upgrade luxevolume.com

Alternatively, LED replacement bulbs designed to fit the factory 9005 (high beam) and 9006 (low beam) sockets are available. However, a significant legal caveat applies: LED conversion bulbs installed in original reflector housings are not DOT-legal for on-road use in many jurisdictions . The reflector housing is optically engineered for halogen filaments, which emit light 360 degrees, while LED chips produce directional light. Even with well-designed bulbs, the resulting beam pattern often scatters light unpredictably, creating glare for oncoming traffic. For this reason, a complete DOT-approved housing is strongly recommended over bulb-only upgrades.