Lutron Ketra

The World's Finest Tunable Light — Natural Spectrum Lighting for Architectural Excellence

Ketra, acquired by Lutron in 2018, produces the most advanced tunable lighting technology in the world. Unlike conventional LED fixtures that approximate white tones, Ketra's Dynamic Spectrum technology renders light that matches the full spectrum of natural daylight — including wavelengths invisible to the eye but critical to how we perceive color and comfort.

The Ketra system delivers tunable white from warm candlelight (1400K) to cool daylight (10000K), vibrant saturated colors, and Lutron's Natural mode that automatically follows the sun's color temperature throughout the day. Every fixture is individually calibrated at the factory for perfect color consistency.