Ketra is Lutron’s most advanced system: full RGBW color mixing across 16.7 million combinations, tuning from 1,400K to 10,000K, and the Natural Light Show that automatically adjusts lighting to mirror the arc of the sun. Rania delivers three-channel natural white light from 1,800K to 5,500K with CRI 90+ performance, the preferred choice for spaces where color accuracy and material fidelity are paramount. Lumaris is Lutron’s precision tunable white platform, offering 1,800K to 4,000K adjustment and an exceptional 50,000-hour lamp life, at an accessible entry point.