Lutron RadioRA 3
Lutron RadioRA 3 for the house you already live in.
Whole-home Lutron control for a finished house, with no walls opened for the control wiring.
CA Lic. #949580 Office in Newbury Park Mon to Fri, 9 to 5
Lutron RadioRA 3 brings keypads, scenes, schedules and motorized shades to a finished house without rewiring it. The dimmer goes in the wall box where the switch was, and the devices talk to a processor by radio. County Line Electric, a Lutron dealer and licensed electrical contractor in Newbury Park, installs and programs it.
What RadioRA 3 is
Professional Lutron control, built for walls that stay closed.
Lutron describes RadioRA 3 as a professionally installed suite of wireless controls, intelligent lighting and window treatments. Its devices use Lutron's Clear Connect radio frequency technology, not Wi-Fi, which is what lets an installer add a keypad or a dimmer without changing the existing wiring. Lutron's own phrase for it is keypad control, wire-free window treatments and intelligent lighting for existing homes without opening walls.
Each wireless dimmer still connects to its lighting circuit in the wall box, so a RadioRA 3 installation is electrical work at every device. Lutron's Sunnata RF dimmer specification requires a neutral wire at the dimmer, and many older switch boxes do not have one. That is the first thing County Line checks on a survey, because it decides which devices go where.
RadioRA 3 is programmed only by qualified installers, using Lutron Designer PC software, with the Lutron app for the household and cloud backup of the programming. County Line programs the systems it installs.
By the numbers
RadioRA 3 in Lutron's figures.
| RadioRA 3 | |
|---|---|
| Stated RF coverage | Up to 7,500 square feet |
| Devices | Up to 400 with paired processors: 200 Clear Connect Type A and 200 Type X |
| Processor power | Data and power over one Ethernet cable (Power over Ethernet), home-run to its PoE supply |
| Without internet | Local device operation continues if the internet connection is lost |
| After a power cut | The processor returns to its previous state when power is restored; its timeclock is kept on an internal battery |
| Programming | Qualified installers only, with Lutron Designer software; the Lutron app for the household |
From Lutron's RadioRA 3 page, its residential system guide and the RadioRA 3 processor specification, read November 2026.
What it controls
The pieces of a RadioRA 3 house.
Dimmers and keypads
Sunnata keypads with a soft-glow LED light bar and field-swappable buttons, and seeTouch keypads with up to seven buttons plus raise and lower.
Shades
Triathlon battery shades, and Sivoia QS and Palladiom wireless shades and Palladiom wire-free shades, on the same keypads and schedules as the lights.
Lighting
Lutron lists Lumaris downlights and tape lights as RadioRA 3 products that connect wirelessly with no additional controls.
Image courtesy of Lutron. County Line Electric is a Lutron dealer.
How the job runs
From survey to scenes.
- 01
Survey
Every switch location that will change: box depth, neutral, ganging, the loads on each circuit and the LED fixtures they feed.
- 02
Plan
Which switches become dimmers, where keypads replace a bank of switches, which windows get shades, and where the processor sits on the network.
- 03
Network
The processor needs a home-run Ethernet connection back to its PoE supply, inside the building. County Line runs it if the house does not have one.
- 04
Install
Devices replaced room by room, usually without opening drywall. Shades mounted and paired.
- 05
Program
Scenes, schedules and keypad engraving set with the household, then the Lutron app on each phone that needs it.
Why an electrician
Wireless control still lives on the house wiring.
The radio is the easy part. What makes a RadioRA 3 system reliable is the work at each wall box: the right device for the load, a neutral where the device requires one, LED fixtures that dim cleanly on the dimmer chosen, and a processor placed so each device is in range. Lutron's processor specification sets range rules for each kind of device, and a house with plaster, stone or long wings needs them planned rather than discovered.
County Line is a licensed electrical contractor, so a box that needs to be deepened, a circuit that needs to be split or a fixture that needs a different driver is handled on the same visit, with a permit where the work requires one.
What drives the cost
What a RadioRA 3 proposal is built from.
RadioRA 3 is priced by the device, not the house.
- How many switches become dimmers, switches or keypads
- Boxes that need a neutral, more depth, or a change in ganging
- The number of shades and their product family
- Whether an Ethernet run to the processor location already exists
- The number of processors and repeaters the layout needs
- Programming time for scenes, schedules and integrations
County Line Electric at a glance
- 20+ yrsIn businessJeff Tucker has run County Line Electric in the Conejo Valley for over 20 years.
- #949580California contractor licenseLicensed, bonded and insured. Check it on the CSLB site any time.
- Site reviewSystem planningWiring, rooms and compatible controls reviewed for the project.
- A+BBB Accredited since 2017Rated A+ by the Better Business Bureau. See the profile.
- 5.0HomeAdvisor ratingFive stars from every reviewed job. Read the reviews.
RadioRA 3 questions
Is RadioRA 3 a good choice for an existing house?
It is the Lutron system built for it. Lutron describes RadioRA 3 as bringing keypad control, wire-free window treatments and intelligent lighting to existing homes without opening walls. County Line surveys the switch boxes first, because each dimmer still connects to the house wiring.
Does RadioRA 3 use Wi-Fi?
No. Lutron states RadioRA 3 devices use its Clear Connect radio frequency technology, not Wi-Fi. The processor connects to the home network by Ethernet and takes its power over that cable.
Does RadioRA 3 keep working if the internet goes down?
Lutron's RadioRA 3 processor specification says local device operation continues if the internet connection is lost. Keypads, dimmers and schedules run in the house; the app away from home needs the internet.
Can I program RadioRA 3 myself?
No. Lutron states RadioRA 3 can only be programmed by qualified installers, using Lutron Designer software. Caséta is the Lutron system a homeowner can set up through the Lutron app.
What is the difference between RadioRA 3 and HomeWorks?
RadioRA 3 is wireless and covers up to about 7,500 square feet and 400 devices, per Lutron. HomeWorks can be wired, wireless or both, covers up to 50,000 square feet and up to 10,000 zones, and offers keypad families such as Palladiom and Alisse. The comparison page lays it out side by side.
How much does RadioRA 3 cost?
It is priced by the number of devices, keypads and shades, any box or wiring corrections, the network run to the processor, and programming. County Line gives a written proposal after the survey.
The Lutron library
Every Lutron system page.
Official references
Where the facts on this page come from.
County Line links to the authorities rather than restating them. Rules change; these pages are current.
- Lutron RadioRA 3: wireless control for existing homes
- Lutron: which residential system is best: coverage, device counts, installer programming
- Lutron RadioRA 3 processor specification: PoE, Ethernet, local operation
- Lutron Sunnata RF controls specification: neutral requirement, range
- CSLB license check: license #949580
Next step
Tell us about the house you live in.
Which rooms, roughly when the house was built, and what bothers you about the lighting today. The office sets up a survey.
Or call (805) 499-0823. Monday to Friday, 9 to 5.