DELTA Lights manufactured in Southern California since 1978 under the name Delta Tech Industries. Delta’s mission statement from the beginning was and still is, to manufacture American premium au tomotive lighting equipment for the automotive market. We take the pride in designing the most innovative lighting concepts for the “Jeep” and truck markets. Delta’s name to fame are the original integrated light bars known as SkyBars™ and Prismatic Headlights known as QuadBars™. Made in USA.