The Mercury Grand Marquis (06-11) Profile Prism Fitted Halos are premium LED lighting accessories for automotive enthusiasts. Designed with precision and innovation, these halos offer exceptional performance and color accuracy. They produce a clear, neutral white light, along with a wide spectrum of colors, all controllable via the Morimoto XBT Controller and smartphone app. The unique phosphorous silicone coating ensures uniform and bright illumination, setting them apart from generic alternatives. Installing these halos is a breeze thanks to integrated micro-mounts, eliminating the need for messy glues or wires. With a Hybrid-LED technology boasting a 50,000-hour lifespan and reliability in varying conditions, these halos are built to last. Plus, they're truly plug-and-play, simplifying the installation process. Whether you opt for the Morimoto XBT or the PrismPilot controller, you'll have control over the vibrant colors, making your vehicle stand out.