Quick Answer: Lutron HomeWorks QSX runs about $30,000 for the lighting system on a 100-circuit home and is the right specification for large estates, multi-structure properties, and any project with Ketra on the fixture list. RadioRA 3 runs about $20,000 on the same circuit count and is the right specification for retrofits, single-structure homes, and projects under roughly 200 devices. The cost gap is real. The decision is driven by scale, structure count, and whether Ketra is on the spec.
When we specify lighting control for a project, Crestron handles the overall system. automation, AV distribution, shading coordination, HVAC, conferencing, and everything that ties it together. Within that architecture, Lutron handles the lighting and shading layer. It is an intentional division of labor, and it works exceptionally well. The question we get most often is which Lutron platform belongs in which project.
The answer is not complicated, but it requires being honest about the scope of the project from the start. We specify both platforms on projects across NJ, NY, and CT, from Greenwich estates to Bergen County retrofits, and the right call depends on three variables: scale, structure count, and whether Ketra is on the spec.
<.-- BEGIN newsletter inline block (proxy v2) --> <.-- END newsletter inline block (proxy v2) -->HomeWorks QSX: The Platform for Serious Builds
HomeWorks QSX is Lutron’s flagship residential lighting control system. It supports up to 10,000 zones and was designed for homes up to 50,000 square feet. It handles wired and wireless devices in the same system, integrates the full Ketra full-spectrum lighting line. including Natural Show circadian programming. and supports Lutron’s most refined keypad lines: Alisse, Palladiom, and Avienna.
The programming depth is significant. HomeWorks QSX supports conditional logic, meaning scenes can respond to time of day, occupancy, shade position, or any variable you want to build into the logic. For a home running Ketra tunable lighting with a circadian schedule, that programmability is essential. you are not just adjusting brightness, you are controlling color temperature and intensity across every zone throughout the day. This is the foundation of circadian lighting that actually supports sleep and well-being.
Integration with Crestron is native and reliable. HomeWorks QSX communicates via Telnet, RS-232, and IP, giving Crestron full bidirectional control. Button presses on a Lutron keypad can trigger Crestron macros. Crestron scenes can override Lutron zones. The two systems operate as a cohesive whole rather than two separate platforms talking past each other.
RadioRA 3: The Right Tool for Retrofit and Smaller Projects
RadioRA 3 tops out at 200 devices and is rated for homes up to 7,500 square feet. It is a wireless-only system using Lutron’s Clear Connect RF protocol. the most reliable wireless lighting protocol in residential. Sunnata is the keypad line, and tunable white lighting is handled through Lumaris rather than Ketra. There is no Ketra integration, no Rania, no full-spectrum Natural Show circadian programming.
For a retrofit project in a 4,000-square-foot home where running new wiring is cost-prohibitive, RadioRA 3 is the correct specification. Basic scenes, schedules, and LEAP API integration cover what most smaller projects actually need. It installs faster, commissions cleanly, and the client gets a genuinely polished Lutron experience at a price point that fits the project budget.
The LEAP API also gives Crestron a reliable integration path, so the same Crestron-led control architecture still applies. just with a lighter lighting layer underneath it.
The Cost Difference Is Real
On a 100-circuit home, HomeWorks QSX typically runs around $30,000 for the lighting system alone. RadioRA 3 on a comparable circuit count comes in closer to $20,000. That 50% gap matters, and it should be part of the conversation early. not after the design is already locked. As we explain in our post on why lighting design matters more than fixtures, the investment is in the system, not the hardware on the wall.
The mistake is letting cost drive the specification in the wrong direction. Specifying RadioRA 3 on a 12,000-square-foot new construction home to save money up front creates a system that will hit its ceiling on day one. Specifying HomeWorks QSX for a 3,500-square-foot retrofit that needs six dimmers and a few scenes is overbuilding for a project that did not need it.
“HomeWorks is the system you specify when the home warrants it. RadioRA 3 exists for the projects where HomeWorks would be overbuilt. The mistake is choosing the wrong one for the wrong reason.” __EMDASH_PROTECT_0__
Ketra Changes the Conversation
If Ketra lighting is on the specification. and for luxury home lighting in NJ and the broader NJ, NY, and CT, it increasingly is. the system decision is made for you. Ketra full-spectrum lighting requires HomeWorks QSX. There is no workaround, no adapter, no alternative path. Lutron built Ketra as a HomeWorks product, and that relationship is by design. We also cover why smart bulbs have no place in high-end projects where this level of performance is expected.
Ketra is worth the conversation. The ability to move from a warm 2700K candlelight scene to a 5000K energizing daylight setting, with full color saturation control, is meaningfully different from tunable white. For bedrooms, offices, wellness spaces, and anywhere circadian lighting matters, it is the specification we recommend within the HomeWorks platform. The benefits extend well beyond aesthetics. see our post on tunable white lighting in luxury bathrooms for a practical example.
Protocol Capabilities Are Comparable
One point worth clarifying: both HomeWorks QSX and RadioRA 3 support 0-10V, DALI, and DMX load protocols. For commercial-adjacent lighting applications. linear fixtures, theatrical elements, architectural LED. either platform can drive the loads. The protocol is not the differentiator. Scale, integration depth, and keypad options are.
How to Choose
New construction luxury home, large square footage, Ketra on the specification, or Crestron integration at full depth: HomeWorks QSX. Retrofit project, smaller footprint, wireless-only install, or budget-conscious scope: RadioRA 3. The decision tree is not complicated once the project scope is honestly assessed.
If you are planning a new build or significant renovation and want to understand how Lutron lighting control fits within a Crestron-led system, our residential team can walk through the right specification for your project.
Frequently Asked Questions
What is the difference between Lutron HomeWorks QSX and RadioRA 3?
Lutron HomeWorks QSX is a wired, processor-based lighting and shading platform designed for large new-construction or major renovation projects. It uses a central processor that manages every dimmer, keypad, and shade motor in the home, and integrates natively with Crestron. RadioRA 3 is Lutron’s wireless platform, designed for retrofits and smaller projects where running wire is impractical. Both deliver Lutron’s best-in-class dimming performance. The choice comes down to whether the walls are open and the project scale justifies the QSX investment.
Which Lutron system is right for my Bergen County NJ home?
For new construction or major renovations in Bergen County, especially larger homes in Alpine, Saddle River, Franklin Lakes, or Mahwah, HomeWorks QSX is the right choice. It provides the integration depth, processing reliability, and scalability that estate-scale projects require. For retrofits where walls cannot be opened, or for smaller homes with fewer than 40 to 50 zones, RadioRA 3 delivers Lutron quality at a more accessible scale. We specify and install both platforms across NJ, NY, and CT, and recommend the right one for each project.
How does Ketra change the Lutron lighting system decision?
Ketra, acquired by Lutron, adds high-accuracy tunable white and full-spectrum color control to the Lutron ecosystem. Ketra full-spectrum fixtures require HomeWorks QSX. There is no workaround. RadioRA 3 supports Lutron-branded tunable white but not the full Ketra fixture line. If Ketra is on the spec, HomeWorks QSX is the system.
How much does Lutron HomeWorks QSX cost in 2026?
On a 100-circuit home, HomeWorks QSX typically runs around $30,000 for the lighting system alone, before Ketra fixtures, shading, or integration labor. That number scales with circuit count, keypad selection, and the number of structures. On larger estates with multiple buildings, HomeWorks QSX projects regularly run $75,000 to $200,000 or more once Ketra and shading are layered in.
How much does Lutron RadioRA 3 cost in 2026?
RadioRA 3 on a comparable 100-circuit count comes in closer to $20,000 for the lighting system. Smaller retrofit scopes, typically 30 to 50 dimmers, run $8,000 to $15,000 installed. The cost difference between RadioRA 3 and HomeWorks QSX is real, roughly 50 percent on like-for-like circuit counts, and it should be part of the conversation early.
Can RadioRA 3 be upgraded to HomeWorks QSX later?
There is no clean upgrade path. The wiring topology is different, the keypad models are different, and the processor architecture is different. If a project might grow into HomeWorks QSX scale, the honest answer is to specify HomeWorks QSX from the start. RadioRA 3 is the right tool for projects that will live within its envelope, not as a stepping stone.