If your Kenworth T680 or Peterbilt 579/5 Series vehicle happens to have a D1S HID bulb, and you're planning to replace it, LOOK NO FURTHER..
Our ND10 D Series replacement for the OSRAM D1S is an easy install. Plug - n - Play with no fault code showing.
Much brighter than HIDs and positive ON-OFF operation. No dimming and waiting for it to light up.
These bulbs are shipped to you directly from our overseas supplier, so give it an extra week of lead time.