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WAC Lighting R4FF FQ 4" Frame-in New Construction Recessed Housing
The WAC Lighting R4FF is a 4" frame-in new construction housing from the FQ Recessed series, engineered to accept all round and square, trimmed and trimless FQ luminaires on one uniform housing platform. Built from 20 Gauge Galvanized Steel, this Non-IC Rated housing is ETL & cETL rated for Dry locations and supports 120-240-277 voltage with 0-10V, ELV, and TRIAC dimming compatibility. Quick connectors on the driver make installation and future driver replacement fast and straightforward.
Key Features
- Trade Size: One 4" housing size fits all round and square, trim and trimless FQ luminaires, simplifying specification and stocking.
- Durable Construction: 20 Gauge Galvanized Steel body provides a sturdy, corrosion-resistant frame-in housing built for new construction applications.
- Quick-Connect Driver Wiring: Quick connectors installed on the driver allow for fast installation and easy driver replacement without rewiring.
- Uniform Ceiling Cutout: Standardized ceiling cutout works across DL, ADJ, and WW trim styles in Round or Square, Trim or Trimless configurations.
- Voltage Rating: Rated for 120-240-277 voltage for flexible electrical installations.
- Dimmable: Compatible with 0-10V, ELV, and TRIAC dimming protocols for versatile lighting control.
- Trimmed EM Option Available: Supports an emergency lighting trim option for code-required egress applications.
- Non-IC Rated: Designed for non-insulated ceiling applications per code requirements.
Certifications & Compliance
- ETL Listed
- cETL Listed
- Rated for Dry Locations
Technical Specifications
- Bulbs Included: No
- Collection: FQ
- Dimmable: 0-10V;ELV;TRIAC
- Energy Star: No
- Hardwired or Portable: Hardwired
- Product Type: Recessed Housings
- Safety Rating: ETL;cETL
- Warranty: 5 Years Functional
- Subcategory: 4" Housing
- Voltage: 120-240-277
- Material: 20 Gauge Galvanized Steel
- Country of Origin: Thailand
- Location Rating: Dry
Typical Applications
- New Construction Recessed Lighting Installations
- Commercial and Residential Ceiling Systems
- Dry Location Interior Lighting
- Round and Square Trim and Trimless Luminaire Systems
- Wall Washing and Adjustable Downlight Applications
Why WAC Lighting?
WAC Lighting builds the FQ Recessed housing from 20 Gauge Galvanized Steel with ETL and cETL ratings for Dry locations, giving contractors a durable, code-compliant frame-in solution. The one-size housing platform and quick-connect driver design reduce installation complexity while supporting a full range of round and square FQ trim options for reliable, serviceable performance.
Manufacturer Resources
Specification Sheet
Product Specs
- Bulbs Included:
- No
- Collection:
- FQ
- Dimmable:
- 0-10V;ELV;TRIAC
- Energy Star:
- No
- Hardwired or Portable:
- Hardwired
- Product Type:
- Recessed Housings
- Safety Rating:
- ETL;cETL
- Subcategory:
- 4" Housing
- Product Voltage:
- 120-240-277
- Product Material:
- 20 Gauge Galvanized Steel
- Location Rating:
- Dry
- Product Style:
- Functional
- Department:
- Electrical
WAC Lighting R4FRFL-1 – Frequently Asked Questions
1) Can the WAC Lighting R4FF 4" recessed housing be installed in an insulated ceiling?
No. The R4FF frame-in housing is Non-IC rated, so insulation cannot be in contact with it. In an insulated attic or ceiling plenum you need an IC-rated housing or a code-compliant insulation barrier keeping material clear of the can. It is also rated for Dry locations only, so no shower, soffit, or damp-location use.
2) Does one R4FF housing work for both round and square FQ trims?
Yes, that is the point of the platform. The single 4 inch FQ frame-in housing accepts all round and square FQ luminaires, trimmed or trimless, and the ceiling cutout is the same across DL, ADJ, and WW trim styles. For a contractor stocking a job, that means one housing part number on the order and the trim decision can be made later.
3) What dimmers work with the WAC FQ 4" recessed housing?
The driver accepts 0-10V, ELV, and TRIAC dimming. So it will run off a standard forward-phase TRIAC wall dimmer in a house, or off a 0-10V control system in a commercial building without changing housings. Match the dimmer to one of those three protocols; a standard magnetic low-voltage (MLV) dimmer is not on the list.
4) Is the R4FF a remodel housing or new construction only?
It is a frame-in new construction housing, meant to be mounted to joists or bar hangers before the ceiling goes up. For an existing finished ceiling where you are working through the cutout, a remodel or retrofit-style FQ housing is the right call instead.
5) Do I get a light engine or lamp with the WAC R4FF housing?
No lamp or bulb is included. The R4FF is the frame-in housing and driver platform; the FQ luminaire module and trim are ordered separately. Budget both lines on the takeoff or the rough-in arrives without anything to finish it.
6) What voltage can the WAC FQ R4FF housing run on?
The FQ R4FF housing is rated 120-240-277 volts, so the same part works on residential 120V and on commercial 277V lighting branch circuits. It is hardwired, not plug-connected.
7) What wattages does the WAC FQ R4FF frame-in housing come in?
Four output levels are offered, 13W, 19W, 25W and 28W, on both the R4FRFL and R4FSFL models. On a multi-space job you can spec a lower wattage for corridors and the 25W or 28W where you need more delivered light, while keeping the same housing platform and cutout throughout.
8) How hard is it to swap a failed driver on a WAC FQ housing after the ceiling is closed?
The driver comes with quick connectors already installed, so a replacement pulls and plugs without cutting or re-splicing wire. For a property manager or MRO crew servicing a building full of these, that keeps a driver failure to a trim-out-and-plug job rather than an electrician rewiring in the ceiling.
9) Can I use the WAC FQ 4" housing for code-required emergency egress lighting?
A trimmed EM (emergency) option is available within the FQ family, so egress fixtures can be matched to the same 4 inch aperture and trim appearance as the normal downlights. The EM version has to be specified as such at order time; the standard R4FRFL and R4FSFL housings are not emergency units.
10) What is the WAC R4FF housing made of, and will it hold up in a humid mechanical space?
The body is 20 gauge galvanized steel, which resists corrosion better than plain painted sheet steel. That said, the unit is only rated for dry locations, so a humid or damp space calls for a damp-rated housing regardless of the steel.
11) What is the difference between the WAC R4FRFL and R4FSFL FQ housings?
Both are 4 inch FQ frame-in housings in the same wattage range of 13, 19, 25 and 28 watts. The R model designations correspond to the round and square FQ formats within the one housing platform, which uses a common ceiling cutout across round, square, trim and trimless configurations.
How fast can I get the WAC Lighting R4FRFL-1 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the WAC Lighting R4FRFL-1 come with a warranty?
Absolutely. The WAC Lighting R4FRFL-1 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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