Source:
https://www.prlog.org/13151752-morsun-technology-launches-dot-gmc-sierra-headlight-assembly.html
Engineered specifically for GMC Sierra trucks, the new 1999 GMC Sierra LED headlight assembly combines advanced optical technology with durable construction to provide exceptional performance in all driving conditions. The headlights feature powerful LED projectors that produce a bright, focused beam pattern for improved visibility during nighttime driving and adverse weather conditions. With DOT compliance, drivers can enjoy enhanced lighting performance while maintaining legal road use requirements.


