#html-body [data-pb-style=S51NH57]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll} Overview The GMC Sierra is an excellent truck, with plenty of modern features. GM started including LED components in the headlights but stopped short of full LED. With upgraded headlights from Form Lighting, you can add full LED functionality to your truck, along with a number of modern features. Triple Projectors. What’s better than one projector? Three projectors. And in these headlights, the top two projectors are bi-LED units, providing output for both low beam and high beam illumination. With a sharp cutoff, broad width, and high intensity, these units provide a serious upgrade in output. Modern Styling. Inspired by the late-model Sierra styling, these lights will give your truck a much more modern appearance. This includes an LED turn signal along with a distinctive C-shaped bright white daytime running light (DRL). If your factory headlights don’t have a DRL, no worries! Installation of this feature is simple thanks to the included harness. Startup Sequence. These headlights are packed with the latest and most modern lighting functions, including a startup or “welcome” sequence. Anytime the running lights turn on, they will illuminate bright white in a two-stage chasing sequence that is sure to turn heads, with an ultra-premium look. Sequential Turn Signal. The startup sequence isn’t the only thing that stands out. These headlights also feature an integrated sequential LED turn signal. Every time the turn signal is activated, amber LEDs activate in a smooth, chasing sequence.  OEM-Grade Construction. Form Lighting headlights are built with quality in mind, using OE-grade materials and design techniques. This includes durable UV-coated polycarbonate lenses, automotive-grade LED emitters, breather vents, and OEM plug-and-play connectors. They