Big trucks need big performance from their headlights! These retrofit assemblies feature brand new TYC headlight assemblies, Mini H1 6.0 projectors, our top of the line PHL bulbs, and high quality butyl sealant to ensure moisture never gets in! PHL HID Bulbs: These bulbs are top of the line. Derived from the most advanced equipment and technology, it adopts the APL pills from the United States, xenon gas from Germany, and Austrian Plansee tunsten metal electrodes. Their lumen output is neck and neck with ORSAM's CBI bulbs. The PHL is truly top of the line. F35x Ballasts: The F35x consumes less and 5 amps during startup. This efficient consumption allows the HID bulb to reach full intensity in less than 1 second. A digital signal processor monitors for external faults and protect the ballast from under voltage, over voltage, output shorts, and open output shorts. The processor also turns the ballast off if overheating occurs. Bi-Xenon Relay harness: The included relay harness provides power to the HID ba