Lutron ·Natural Light
Light that moves with the day.
Ketra is the most advanced light source Lutron makes — a full-spectrum LED that shifts its color and intensity to mirror the natural arc of the sun. Warm and low at dawn, bright and neutral at midday, amber and calm at night. In a Santa Barbara or Montecito home, it's the difference between rooms that are merely lit and rooms that feel alive.
Capabilities
What Ketra delivers
Full-spectrum tuning
A single fixture sweeps from candlelit 1,400K to crisp 10,000K daylight — and every saturated color in between — without swapping bulbs or fixtures.
Natural Show
Automated programs quietly retune every Ketra light through the day to support circadian rhythm: energizing mornings, focused afternoons, restful evenings.
True-to-life color
CRI 90+ with deep, even dimming renders art, millwork, stone, and skin tones the way they're meant to look — no green or pink cast at low levels.
Flawless low-end dimming
Smooth, flicker-free dimming to 0.1% means a room can glow at barely-there levels that conventional LED simply can't hold.
Architectural fixtures
Downlights, linear, pendants, and lamps in finishes that disappear into the ceiling plane — engineered to be felt, not seen.
One ecosystem
Ketra is controlled by Lutron HomeWorks, so light, shade, and scene all respond together from a single keypad, app, or voice command.
Why tunable light matters
Conventional lighting picks one color temperature and holds it forever — a fixed, flat note in a house that's otherwise full of natural change. Ketra rejects that. Its light tracks the sun: a soft, warm wash first thing in the morning, a clean and energizing white through the working day, and a deep amber that signals the body to wind down after dark.
The effect is subtle by design. Guests rarely notice the lighting is moving — they just notice the home feels calm, comfortable, and somehow right at every hour. That is exactly the outcome we engineer for.
Engineered, not just installed
Ketra rewards precision. Fixture spacing, beam angle, color calibration, and the timing of each Natural Show are all design decisions — and they're where most installs fall short. Our team lays out every room to the photometrics, then calibrates the system on site so adjacent fixtures match perfectly and scenes recall identically every time.
As Santa Barbara's largest Lutron and Ketra dealer, we also stock it. That means no months-long backorder waits between design and a finished, dialed-in room.
Is it right for you?
Ketra is ideal for
- Estates where lighting quality is a design priority
- Art collections and galleries needing true color rendering
- Primary suites and wellness spaces built around circadian health
- Kitchens and great rooms used from dawn to late night
Questions
Good to know
Can Ketra be added to an existing home?+
Often, yes — especially alongside a HomeWorks or RadioRA 3 system. We assess your wiring and ceiling access during the consultation and recommend the cleanest path.
Does the color-changing happen automatically?+
Yes. Once we program Natural Show, the lights retune themselves through the day. You can always override to a fixed scene from any keypad or the app.
Is Ketra worth it over standard tunable-white LED?+
For clients who care about how their home looks and feels, yes. Ketra's spectrum, color accuracy, and ultra-low dimming are in a different class from typical tunable-white products.
More from Lutron
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