What’s Better: HID or LED D2S Bulbs? (2026 Comparison Guide)
When comparing HID vs LED D2S bulbs, the answer is not as straightforward as most people think. If your vehicle uses D2S HID headlights, you have probably asked yourself whether it is worth upgrading to LED replacements. On paper, LED sounds like the obvious winner. Newer technology, higher efficiency, and bold claims about brightness. But […]
Cars and Trucks Coloring Pages
Cars and Trucks Coloring Pages Want your beautiful artwork featured on the world’s largest lighting-centric social pages? Print your pages, color them, and upload them to your favorite social media with hashtag #theretrofitsource – we routinely give out prizes, special mentions, and spotlights on your work of art! The Retrofit Source Coloring Book Cover The […]
Everything You Need To Know About Hid Ignitors
Over the past 5 years, there have been many changes to Morimoto XB HID systems. With those changes came a few compatibility issues. We will cover which igniters work with each ballast. That way, whether you are trying to use up some spare parts or have a warranty issue, you know exactly what components you […]
Dielectric Headlight Bulb Grease What It Is And Why You Need It
We are here to demystify dielectric grease by showing why, when, and how you would use it. Get your headlight bulb grease here. You have invested your hard-earned money in a high-performance set of parts to upgrade the lighting on your vehicle. With every set of electrical connections that are likely to be found on […]
Halogen Headlights: How They Work & Are They Still Worth It?
In recent years, the automotive market has seen an influx of new headlight options that threaten to end the dominance of halogen lights. If you’ve ever wondered about the advantages of led vs hid headlights for cars or the differences between hid and led headlights in an effort to sort of these equally tempting options, […]
ARE XENON HEADLIGHTS BETTER?
Headlights are one of the most important features on any motor vehicle. While the average driver is likelier to think of the engine, wheels and passenger compartment on the shortlist of automotive essentials, headlights are close behind in terms of usefulness. Even though you don’t need headlights to actually run a car, you must have […]
What Is an HID Relay Harness? How It Works and How to Choose the Right One
A wire harness is installed so that your factory headlight circuit can control your new HID system properly. Generally speaking you can’t just plug the ballasts into the sockets that powered the halogen bulbs and expect them to work reliably or even at all. A harness not only ensures that the outputs from your car […]
Advanced Considerations for Headlight Upgrades
In 1993, BMW became the first automaker to offer a vehicle with HID headlights. Powered by a monster sized HID ballast (around the size of a brick) that ran off AC Power, it utilized a bulb simply designated as “D1.” The first American-made HID headlight system was offered in 1996 by Lincoln on their MKVIII. […]
Things to Consider When Upgrading Your Headlights
Most OEM projectors out there come standard with what is known as “fresnel” lenses. These projector lenses have circular lines molded into their surface. They are often produced with less than optically clear glass. So what? Well the fresnel lines and frosted/ translucent glass dim the output and soften the beam pattern. As a result, […]