Deep Space Lighting Bi-Xenon (HID) Headlamp Set (Pair) for Freightliner Columbia Complete headlamp assemblies (pair) for Freightliner Columbia trucks Upgraded look, and superior performance compared to original equipment lights. Projector-style bi-xenon headlamps designed for your truck Installs in 30 minutes! No cutting, drilling, baking, etc.--just unbolt your old light housings, unplug, reconnect and remount. Fits all Freightliner Columbia trucks