Product Description
NLOS-S42L40WW 4" Surf Regressed Edge-lit Surface Mounted LED Square Baffle is part of Nora Lighting’s SURF series of ultra-thin edge-lit luminaires. At only 11/16" thick, it provides the clean look of a recessed downlight in a surface-mount design. Delivering up to 778 lumens at 4000K with 90+ CRI, this 4" square fixture reduces glare with a regressed baffle and honeycomb lens while mounting directly to standard junction boxes.
Quick Summary
- Model: NLOS-S42L40WW
- Type: 4" Square Edge-lit Surface Mount with regressed baffle
- Lumen Output: ~778 lm
- Wattage: ~10.5W
- CCT / CRI: 4000K, 90+ CRI
- Finish: White (WW)
- Dimming: Triac / ELV (120V)
- Listings: ENERGY STAR®, cULus Wet Location, Title 24 JA8-2022
- Free shipping on orders over $250
Product Benefits
- Slim 11/16" profile creates a recessed look without requiring a housing.
- Regressed baffle with honeycomb lens reduces glare and enhances visual comfort.
- Energy efficient edge-lit LED design saves over 80% energy compared to incandescent.
- All-in-one solution—mounts directly to 4" octagonal junction boxes, no housing required.
Key Features
- 4000K, 90+ CRI for crisp, high-quality light output.
- Edge-lit technology: uniform light with no hot spots.
- Adjustable application: mounts on standard or fire-rated junction boxes.
- Wet location listed: suitable for bathrooms, showers, and covered outdoor spaces.
- Title 24 JA8-2022 compliant and ENERGY STAR certified.
Specifications
| Technical Specs | Details |
|---|---|
| Input Voltage | 120V AC |
| Power | 10.5W nominal |
| Lumens | 778 lm (at 4000K) |
| CCT / CRI | 4000K / 90+ CRI |
| Dimming | Triac / ELV |
| Operating Temp | 0°C to 45°C |
| Physical Specs | Details |
|---|---|
| Fixture Depth | 11/16" (17mm) |
| Housing | Surface mount with aluminum backplate |
| Trim | Polycarbonate regressed baffle, white finish |
| Lens | Edge-lit light guide with honeycomb lens |
| Mounting | Standard 4" octagonal J-box (min. 1-1/2" depth) |
| Compliance & Listings | Details |
|---|---|
| Certifications | cULus Wet Location, ENERGY STAR®, FCC |
| California Title 24 | JA8-2022 compliant |
| Warranty | 5-Year Limited |
Application Examples
- Bathrooms and showers with wet location rating.
- Kitchens and hallways where a surface-mount recessed look is preferred.
- Covered patios or porches needing slim-profile surface lighting.
Installation Tips
- Mount directly to a 4" octagonal junction box with at least 1-1/2" depth.
- Ensure proper electrical connection to Triac/ELV dimmer for smooth operation.
- Suitable for closets per NEC 410.16 (A)(1) and (C)(1).
- Allow adequate airflow and do not exceed rated operating temperature (45°C max).
Frequently Asked Questions
Q: How thin is the SURF LED surface mount?
A: The fixture is only 11/16" thick, creating a sleek recessed appearance.
Q: What is the lumen output of NLOS-S42L40WW?
A: Approximately 778 lumens at 4000K, using ~10.5W power.
Q: Is it dimmable?
A: Yes. It supports Triac and ELV dimming on 120V circuits.
Q: Where can this fixture be used?
A: It is cULus Wet Location listed, making it safe for showers, bathrooms, and damp environments
Q: Does it require a housing?
A: No. The SURF series is designed for direct junction box mounting, no recessed housing needed
Q: Is it Title 24 compliant?
A: Yes, it is certified to meet California Title 24 JA8-2022 efficacy standards
