Regent5 is a certified Lutron dealer and a C10 and C7 licensed contractor, CSLB License 1033103. We design, install, and service Lutron Rania for homes in Atherton, Woodside, Portola Valley, Hillsborough, Los Altos Hills, Los Altos, Menlo Park, Palo Alto, and San Francisco. Rania is the newest of Lutron's three intelligent lighting brands, and the clearest way to describe it is this: it uses Ketra's colour mixing technology, applied to white light. There is no saturated colour capability. What you get instead is a tunable white that runs from 1,800K, an incandescent-like glow, up to 5,500K, which reads as midday daylight, and holds a CRI of 90 or above across most of that range, from 2,700K through 5,000K. That is a wider span and a better rendering figure than conventional tunable white products deliver.
This is the question we get asked most, and it has a straightforward answer. If a project needs saturated colour, a wall washed in a specific hue, a room that changes character for an event, art lighting tuned to a particular palette, then Ketra is the only option in the range that does it. If the project needs exceptional white light and nothing more, Rania delivers colour rendering in the same class at a lower point in the range. Most estates want both, and they can coexist on one system. A common and sensible split is Ketra in the great room, the dining room, and anywhere art hangs, with Rania carrying the bedrooms, hallways, studies, and secondary spaces. Both run on the same control system, both appear in the same scenes, and to the owner it is simply the lighting. If you want to settle the question rather than argue it from specification sheets, our San Carlos design center has two dedicated lighting rooms with Ketra, Rania, and Lumaris all installed. The Lounge is furnished as a family and living space with real materials and finishes. The Office is a clean workspace environment. Seeing Rania against Ketra on the same stone, the same timber, and the same fabric usually settles the specification in a few minutes.
The D2 is a two inch aperture downlight and the piece most projects are built around. A small aperture is what lets a ceiling read as clean, because the fitting recedes rather than announcing itself, which is why lighting designers keep specifying two inch even when larger apertures would be cheaper. It comes in fixed, adjustable, and wall wash configurations, so one aperture size covers general illumination, directional accent onto art or a stone face, and an even wash down a wall. Two versions exist for two situations. The New Construction D2 installs to the frame during rough-in, which means it has to be on the drawings before the ceiling closes. The D2 Remodeler installs through a finished ceiling, which is what makes Rania viable in a house that is already complete.
Rania is not only a recessed product, and the rest of the range is what lets a room hold together. The A20 lamp puts Rania light into a standard A-series shape for wall sconces, decorative pendants, and table lamps, in E26 or GU24 bases. This matters more than it sounds: a decorative fixture running a conventional bulb next to a Rania downlight will look wrong, and the A20 is how that gets solved. The S30 is a PAR30 lamp for track and five inch recessed housings, offered in five beam angles from focused spot to very wide flood. The S38 is a PAR38 for track and six inch housings, with four beam angles including a tight ten degree spot for art. Rania tape light carries the same 1,800K to 5,500K range into coves, stair details, curved mirror edges, and under cabinet runs.
Rania was engineered from the start to run on Lutron's control systems rather than being made universal and then adapted. On residential work that means HomeWorks. The benefit is that colour temperature and intensity are both scene properties, so a single keypad button can set every fixture in a room to its own level and its own warmth, then fade there over a chosen interval. It also means the system can shift colour temperature across the day automatically, calculated from the position of the sun at the location of the house rather than from clock times, so the behaviour stays right through the year without intervention.
Rania decisions get made early or they get made badly. Aperture size, trim finish, beam angle per location, fixed against adjustable against wall wash, and the point at which the New Construction housing has to be ordered are all rough-in decisions on a new build. Retrofitting the D2 Remodeler into a finished house is possible and is one of the product's real strengths, but ceiling void depth, joist positions, and existing wiring all need checking before anything is ordered rather than after. We work from the reflected ceiling plan and the fixture schedule alongside the lighting designer where there is one, and we produce the schedule ourselves where there is not.
Regent5 designs, installs, and services Lutron Rania lighting in Atherton, Woodside, Portola Valley, Hillsborough, Los Altos Hills, Los Altos, Menlo Park, and Palo Alto, in San Francisco including Pacific Heights, Sea Cliff, Presidio Heights, Noe Valley, and Russian Hill, and in Saratoga, Los Gatos, Campbell, Ross, Tiburon, Belvedere, Napa, Sonoma, Carmel, and Pebble Beach. Our office and design center is at 1300 Industrial Rd, Suite 12, San Carlos, CA 94070.
Rania is the newest of Lutron's three intelligent lighting brands. It applies Ketra's colour mixing technology to white light only. The range runs from 1,800K, an incandescent-like glow, up to 5,500K, which reads as midday daylight, and holds a CRI of 90 or above from 2,700K through 5,000K.
Rania is focused on high-quality white light across a broad 1,800K–5,500K range. Ketra adds a much wider white-light range plus saturated color and its advanced color-rendering tools. Lumaris also offers RGB + tunable-white tape lighting, so product selection depends on the form factor, color capability, white-light range and control system required by each space.
For principal architectural lighting where the project needs Ketra's full color and broader tuning capability, Ketra remains the premium specification. Where the goal is exceptional natural white light in Rania's available downlights, lamps, track and tape formats, Rania can be the better fit. Many custom homes use more than one Lutron intelligent-lighting family by application.
A small aperture lets a ceiling read as clean, because the fitting recedes rather than announcing itself. It is why lighting designers keep specifying two inch even where larger apertures cost less. The D2 comes in fixed, adjustable, and wall wash configurations, so one aperture covers general illumination, accent onto art or stone, and an even wall wash.
Yes. The D2 Remodeler installs through a finished ceiling rather than requiring access from above or installation to the frame at rough-in. Ceiling void depth, joist positions, and existing wiring all need checking before ordering, which is a survey rather than a guess.
Yes, and this matters more than it sounds. The A20 lamp puts Rania light into a standard A-series shape for sconces, pendants, and table lamps in E26 or GU24, which is how you avoid a decorative fixture running a conventional bulb looking wrong beside a Rania downlight. The S30 PAR30 offers five beam angles, the S38 PAR38 four including a ten degree spot. Rania tape light carries the same range into coves and joinery.
Yes. Rania was engineered from the start for Lutron control rather than made universal and adapted. On residential work that means HomeWorks. The benefit is that colour temperature and intensity are both scene properties, so one keypad button sets every fixture to its own level and its own warmth and fades there over a chosen interval.
Yes. The system calculates sunrise, sunset, civil dawn, and civil dusk from the location of the house and runs on sun events rather than clock times, so the behaviour stays correct through the year without anyone adjusting it.
Yes. The Regent5 Showroom & Design Center has Ketra, Rania and Lumaris installed and operating so designers and homeowners can compare white-light range, color capability, dimming and how different materials read under each system before specification.
For current residential applications, Rania is designed to work natively with Lutron HomeWorks. Regent5 verifies the current fixture, controller and project requirements during design so the selected Rania products and control architecture are specified as one system rather than assembled independently.
Yes. Regent5 can assess the Lutron control system, Rania fixtures, scenes, schedules and programming, then troubleshoot or revise the installation based on the current system configuration. Existing project documentation is helpful but is not always required to begin an assessment.
Before the lighting package, housings, controls and ceiling details are finalized. Early coordination lets the lighting designer, architect, electrician and controls team confirm fixture types, aperture locations, trim details, power and control requirements, and which spaces should use Rania versus Ketra, Lumaris or conventional fixtures.
Yes. A custom home does not need every fixture to use the same light engine. Rania can be specified where its white-light quality and tuning range add value, while conventional architectural fixtures remain appropriate elsewhere. The important part is coordinating color temperature, dimming behavior, controls and scene design so the house still reads as one lighting system.
Regent5 is a certified Lutron dealer holding HomeWorks certification. These pages go further into the platforms, the hardware, and the service work.
Lutron lighting control
The full range, from HomeWorks QSX to RadioRA 3 and Ketra, and how we decide between them.
HomeWorks QSX
The wired panelised platform for new construction and major remodels. Panels, processors, and programming.
RadioRA 3
Whole house control in a finished home without opening walls, and conversion from RadioRA 2.
Keypads and finishes
Aviena, Alisse, Palladiom, seeTouch, and Pico compared, with engraving and finish selection.
Shades and drapery
Sivoia QS, Palladiom, Triathlon, drapery tracks, and Insolroll exterior shading.
Legacy system upgrades
Illumination, Interactive, and QS systems serviced and upgraded when the original dealer is gone.
Regent5 provides consultations for Lutron Rania projects, on new construction and on finished houses. Send us your contact information and a short outline of the project and we will put you with the right person.
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