Nora Lighting NSIC-4LMRAT 4" Max. Adjustability LED Dedicated IC Airtight New Construction Housing

The in-ceiling can that Nora's 4" trims mount into, built to code.

The Nora Lighting NSIC-4LMRAT is a 4" Max. Adjustability LED Dedicated IC Airtight New Construction Housing. 4″ Max. Adjustability LED Dedicated IC Airtight housings are designed for use with Pearl LED retrofit luminares. Housing does not include a “can” inside, allowing for adjustable reflectors to adjust up to 35°. Airtight construction reduces energy costs by reducing the amount of air escaping through the ceiling.

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)

What you need to buy

This is the housing (the can installed above the ceiling). Choose a trim separately.

Trims and retrofits that fit:

• NPR-4RC – 4″ Pearl LED Round Adjustable Cone
• NPR-4RG – 4″ Pearl LED Round Adjustable Gimbal
• NPR-4RPH – 4″ Pearl LED Round Fixed Pinhole (Wet Location
• NPR-4RPHA – 4″ Pearl LED Round Adjustable Pinhole
• NPR-4RNB – 4″ Pearl LED Round Bullnose (Wet Location
• NPR-4RNDC – 4″ Pearl LED Round Reflector with Round Aperture (Wet Location
• NPR-4RTLA – 4″ Pearl LED Trimless Round Adjustable
• NPR-4RTLNDC – 4″ Pearl LED Trimless Round Downlight (Wet Location
• NPR-4RTSLA – 4″ Pearl LED Trimless Round Adjustable Slot
• NPR-4RSL – 4″ Pearl LED Round Adjustable Slot Aperture
• NPR-4RSLA – 4″ Pearl LED Round Adjustable Slot
• NPR-4SC – 4″ Pearl LED Square Adjustable Cone
• NPR-4SG – 4″ Pearl LED Square Adjustable Gimbal
• NPR-4SNB – 4″ Pearl LED Square Bullnose (Wet Location
• NPR-4SNDC – 4″ Pearl LED Square Reflector with Round Aperture (Wet Location
• NPR-4SNDSQ – 4″ Pearl LED Square Reflector with Square Aperture (Wet Location

Sold separately:

• Accessories: NSIC-4EXTC2 – Extension Collar for Ceilings up to 1.75″ thick

Specifications

• Brand: Nora Lighting
• Model: NSIC-4LMRAT
• Type: Recessed housing (the can that goes in the ceiling)
• Aperture (trim size): 4"
• Dimensions: 11.5" × 14.5" × 5.5" (L × W × H)
• Weight: 2.15 lb
• Listing: cULus, rated for damp locations
• Country of origin: China
• Nora item numbers: NSIC-4LMRAT

Who this is not for

• Anyone who wants a finished light in one box: the trim is sold separately.
• Inside a shower or anywhere water hits the fixture directly (damp rated, not wet rated).

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

Which trims fit the NSIC-4LMRAT?

Nora lists 16 trims and retrofits for this housing, including NPR-4RC, NPR-4RG, NPR-4RPH, NPR-4RPHA, NPR-4RNB and NPR-4RNDC. Each trim page on our site shows the housings it works with.

Is the NSIC-4LMRAT for new construction or remodel?

New construction. It mounts to the joists with hanger bars before the ceiling is closed up.

What does IC and air-tight mean?

IC (insulation contact) means it can touch ceiling insulation safely. Air-tight means it limits air leaking between the room and the attic, which energy codes such as California Title 24 require in many cases.

Can the NSIC-4LMRAT go in a bathroom or outdoors?

It is listed for damp locations: bathrooms (outside the shower), covered porches and laundry rooms. It is not rated for direct water spray.

Is the NSIC-4LMRAT 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 NSIC-4LMRAT?

Nora lists it at 11.5" × 14.5" × 5.5" (L × W × H), weighing 2.15 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.

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