Ketra
Tunable architectural LED lighting with a 1,400K–10,000K white-light range, full color control, and native Lutron integration.
What they're known for
A lighting engine designed to change spectrum, color temperature, intensity, and color rendering continuously rather than treating dimming as the only variable.
Ketra, now part of Lutron, makes tunable lamps, downlights, track luminaires, and linear-lighting components designed for precise control of color and intensity. Its sources cover a published natural-white range from 1,400K to 10,000K plus full-color output, and integrate natively with Lutron HomeWorks and other Lutron control platforms. The important distinction is spectral and color control at the light-source level: scenes can change the character of white light through the day instead of simply dimming a fixed LED.
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Sources
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