Nora Lighting NOXAC-431TW 4" AC Onyx LED Retrofit Reflector with Selectable CCT, 900lm/11.5W

Upgrade an old 4" can to dimmable LED without cutting a new hole in the ceiling.

The Nora Lighting NOXAC-431TW is a 4" AC Onyx LED Retrofit Reflector with Selectable CCT, 900lm / 11.5W. 4” AC Onyx Retrofit Series requires no driver and allows for a sleek design. Spun aluminum construction provides clean sharp edges and is suitable for use with most 4” recessed housings. Deep-regressed optics and round aperture deliver even and glare-free illumination.

Spec sheet & downloads

Nora's spec sheet includes the dimension drawing and full technical details. Please check it (or share it with your electrician) before ordering.

• Specification sheet (PDF)
• Installation instructions (PDF)
• IES photometric file

What you need to buy

Retrofits an existing 4" recessed can (IC or non-IC, Nora or most other brands), using the existing bulb socket. No new housing needed.

In the box: Retrofit Adapter.

Sold separately:

• Color Temperature: NOXAC-431
• Accessories: NOX-4EYELID – 4″ Round Eyelid for Onyx; NOX-4OR-W – 4″ Round Oversize Ring for Onyx; NRA-212SM – GU24 Socket Adapter; NEPK-23LEDUNV – 23W Emergency LED Driver with Remote Test Switch

Specifications

• Brand: Nora Lighting
• Model: NOXAC-431TW
• Type: LED retrofit downlight
• Size: 4"
• Light output: 900lm / 11.5W
• Color temperature: Selectable CCT (27K / 30K / 35K / 40K / 50K)
• Color rendering (CRI): 90+
• Input voltage: 120VAC
• Dimming: Triac or ELV
• Finishes: Black Finish or White Finish
• Dimensions: 5" diameter × 2" high
• Weight: 0.3 lb
• Included: Retrofit Adapter
• Listing: cETLus, rated for wet locations
• Certifications: California Title 24 (JA8) compliant
• Country of origin: China
• Nora item numbers: 2 options (listed below)

Who this is not for

• Ceilings with no existing 4" recessed can (add a housing first, or choose a can-less downlight).
• Commercial 0-10V dimming systems (it dims on Triac or ELV).

Why we carry it

We have curated lighting since 2009 and carry Nora because contractors trust it: clear specs, code-compliant housings and trims that fit what they say they fit. We list only options Nora has in stock and refresh stock every week, so the item number you order is the one that ships.

Frequently asked questions

Will the NOXAC-431TW fit my existing 4" recessed cans?

Yes, that is what it is made for. Nora designs it to retrofit existing 4" recessed housings, IC or non-IC, from Nora and most other brands. Remove the old trim and bulb, screw the included medium-base adapter into the socket, plug it into the module and push the spring clips up into the can.

What dimmer should I use with the NOXAC-431TW?

Nora rates it for Triac or ELV dimming. Use a dimmer listed for LED loads, and check the spec sheet for Nora's dimming details.

Can the NOXAC-431TW go in a bathroom or outdoors?

It is listed for wet locations, so showers and covered outdoor ceilings are fine.

What comes in the box with the NOXAC-431TW?

Retrofit Adapter. Sold separately: NOXAC-431, NOX-4EYELID, NOX-4OR-W and NRA-212SM.

Is the NOXAC-431TW in stock, and can I order it for a project?

We only list options that Nora has ready to ship and update stock from their warehouse every week. Contractors and builders are welcome to order in project quantities; contact us for larger jobs.

What are the dimensions of the NOXAC-431TW?

Nora lists it at 5" diameter × 2" high, weighing 0.3 lb. The spec sheet linked above has the full dimension drawing.

Contractors & project orders

Electricians, builders and designers: order mixed finishes and color temperatures in project quantities. Contact us for larger jobs.

Shipping

Free shipping on orders over $100. In-stock items typically leave the warehouse in 2–3 business days.

Nora item numbers

• NOXAC-431TWBB: Black Finish
• NOXAC-431TWWW: White Finish

Please note: Because this item is made to order or specially sourced, it is final sale.