Residential electrical project

Lutron RadioRA 3: A Buyer's Guide to Whole-Home Lighting Control

Lutron RadioRA 3 is the company's professionally installed, whole-home wireless lighting control platform — the step up from the do-it-yourself Caseta system. If you are specifying lighting control for a larger home, a renovation, or a project that ties lights and shades together, this guide explains how RadioRA 3 works, what it can scale to, and how to choose the right components.

What RadioRA 3 is built for

RadioRA 3 controls dimmers, switches, keypads, shades, and sensors from a single system, operated through wall keypads, the Lutron app, and voice assistants. Unlike DIY systems, a RadioRA 3 project is programmed by a Lutron-certified installer, which is what makes advanced scenes, keypad engraving, and whole-home coordination reliable.

System capacity and architecture

A single RadioRA 3 processor supports up to 100 Clear Connect Type X (Sunnata RF) devices plus up to 95 Clear Connect Type A (RadioRA 2 / RA2 Select) devices, with up to four Auxiliary Repeaters per processor. Sunnata companion dimmers and switches do not count toward the 100-device limit. For larger projects, a RadioRA 3 system scales to up to 4 processors — up to 200 Type X and 190 Type A devices in total (with up to 8 Auxiliary Repeaters across the system).

Clear Connect Type X vs. Type A

  • Clear Connect Type X (Sunnata RF) communicates on 2.4 GHz in a self-healing mesh, so it generally does not need repeaters to extend range.
  • Clear Connect Type A (RadioRA 2, RA2 Select) communicates near 434 MHz and uses wireless repeaters for coverage.
  • RadioRA 3 works with both, so existing RA2 and RA2 Select devices can often be carried into a new RadioRA 3 system.

Choosing components

A typical RadioRA 3 design starts with the processor, then adds Sunnata RF dimmers and switches, keypads, Pico remotes, occupancy and daylight sensors, and Lutron shades. Match dimmers to your load types (LED, ELV, MLV, incandescent) and plan keypad locations early. Browse the full Lutron collection and lighting controls to see compatible devices.

Buy from an authorized Lutron dealer

Buying RadioRA 3 from an authorized dealer means genuine product, valid Lutron warranties, and access to approved pricing and support. Rock Lighting & Electric is an authorized Lutron dealer and a full-line lighting and electrical distributor for contractors and builders. Request a quote and we will help spec the processor, devices, and shades for your project.

Frequently Asked Questions

What is Lutron RadioRA 3?
RadioRA 3 is Lutron's professionally installed, whole-home wireless lighting control system. It controls lights, shades, and other Lutron devices from keypads, the Lutron app, and voice assistants. It sits above the DIY Caseta system in capacity and is designed for larger homes and integration projects programmed by a Lutron-certified installer.
How many devices does a RadioRA 3 system support?
Per processor, up to 100 Clear Connect Type X (Sunnata RF) devices plus up to 95 Clear Connect Type A (RadioRA 2 / RA2 Select) devices, with up to four Auxiliary Repeaters. Sunnata companion dimmers and switches don't count toward the 100-device limit. A full system scales to up to 4 processors — 200 Type X and 190 Type A devices in total.
What is the difference between Clear Connect Type X and Type A?
Clear Connect Type X devices, such as Sunnata RF dimmers and switches, communicate on the 2.4 GHz band in a self-healing wireless mesh, so they generally do not require repeaters to extend range. Clear Connect Type A devices (RadioRA 2 and RA2 Select) communicate near 434 MHz and use wireless repeaters to extend coverage. RadioRA 3 works with both.
How is RadioRA 3 different from Lutron Caseta?
Caseta is a do-it-yourself system for smaller homes, installed and programmed by the homeowner through the app. RadioRA 3 is a specification-grade system installed and programmed by a Lutron-certified professional, with far greater device capacity, advanced keypad and scene programming, and tighter integration with shades and third-party systems.
Where can I buy Lutron RadioRA 3 components?
Rock Lighting & Electric is an authorized Lutron dealer and stocks RadioRA 3 processors, Sunnata RF dimmers and switches, keypads, Pico remotes, sensors, and compatible shades, along with the full Lutron line. For a whole-home design, request a quote and our team will help spec the processor, devices, and shades for your project.

Pricing and project help: create your Rock contractor account for trade pricing and online ordering, or request a quote. Related guides: the RR-PROC3 processor explained, RadioRA 3 vs Caséta, RadioRA 3 vs RadioRA 2, and Lutron system design from your plans.

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