Lotus 4" Square Deep Regressed LED Downlight 18W | LD4S-HO
Lotus 4" Square Deep Regressed LED Downlight 18W | LD4S-HO
Available to order — ships from incoming stock
Typically ships in 1–3 Business Days (Western Canada) · 2–4 Business Days (Eastern Canada)
SKU:LD4S-27K-HO-4S-WR-WT
The Lotus LD4S is a premium 4-inch square deep regressed LED downlight built for projects that need a cleaner architectural look with better glare control than standard recessed lighting. Its deep regressed design creates a more refined visual appearance while helping deliver comfortable, controlled light in residential and commercial spaces.
Designed for demanding installations, the LD4S combines 90+ CRI color quality, multiple beam options, multiple trim and reflector combinations, and a compact 15W plenum-rated platform. It is approved for insulated ceilings, open plenum, and wet locations, with Type IC and air-tight construction for easier specification across a wide range of ceiling conditions.
Why this downlight stands out
- Deep regressed architectural design for a more elegant, low-glare appearance
- 15W output with premium 90+ CRI light quality
- Beam flexibility with 30° standard and optional 15° or 60° optics
- Broad light engine selection including fixed CCT, 5CCT selectable, and Dim to Warm options
- Type IC, wet location, air-tight, and open plenum rated
- Driver inside connection box with Romex quick connectors
- No housing required
- Compact 3 1/2-inch deep design for tighter ceiling spaces
Available light options
- 2700K
- 3000K
- 3500K
- 4000K
- 5000K
- 5CCT selectable: 2700K / 3000K / 3500K / 4000K / 5000K
- Dim to Warm 3000K to 2000K
- Dim to Warm 3000K to 1800K
Available reflector and trim combinations
- White Reflector / White Trim
- Silver Reflector / White Trim
- Black Reflector / White Trim
- Black Reflector / Black Trim
- Silver Reflector / Black Trim
- Oil Rubbed Bronze
Key specifications
| Model | LD4S |
|---|---|
| Fixture Type | 4" Square Deep Regressed LED Downlight |
| Power | 15W |
| CRI | 90+ |
| Beam Angles | 30° standard, 15° optional, 60° optional |
| Default Driver | 120V AC Triac dimmable |
| Optional Driver | 120V-347V AC 0-10V dimmable |
| Location / Construction Ratings | Type IC, Air-Tight, Wet Location, Open Plenum |
| IP Rating | IP54 |
| Ambient Temperature | -40°F (-40°C) to +104°F (+40°C) |
| Projected Life | 70% light output at 50,000 hours |
| Certification | cULus |
| Warranty | 10 Year Residential / 5 Year Commercial |
| Dimensions | ID 4" | OD 4 7/8" | Approx. 3 1/2" deep profile |
| Cutout | 4" to 4 1/4" |
Lumen output
| Light Engine | Lumens |
|---|---|
| 2700K | 1315 lm |
| 3000K | 1360 lm |
| 3500K | 1340 lm |
| 4000K | 1430 lm |
| 5000K | 1420 lm |
| Dim to Warm 3000K-2000K | 1070 lm |
| Dim to Warm 3000K-1800K | 1210 lm |
5CCT lumen output
| 5CCT Setting | Lumens |
|---|---|
| 2700K | 1140 lm |
| 3000K | 1200 lm |
| 3500K | 1310 lm |
| 4000K | 1360 lm |
| 5000K | 1370 lm |
Installation advantages
- Driver inside connection box with Romex quick connectors
- Fast installation with knockouts and no separate housing required
- Armored cable and metal connectors for open plenum applications
- Compact form factor for limited ceiling space
Accessories sold separately
- Optional 120V-347V 0-10V dimmable driver: LLL-LD1535TR
- 26" flat rough-in plate: RIP414
- 13" flat rough-in plate: MP4-2
- 13" flanged rough-in plate: MP4
- 4 1/8" hole flanged with hanger bars: FRP4
- Armored low voltage extension 10 ft: MEC10
- Emergency driver 8W 120V-347V input: BLD-HM08D-YYY
The Lotus LD4S-HO is the high-output 18W version of Lotus’s 4-inch square deep regressed architectural downlight family. It is built for projects that want the same clean, low-glare recessed look as the standard LD4S, but with more delivered light for higher ceilings, stronger ambient layers, or more demanding commercial applications.
With 90+ CRI, multiple beam options, multiple reflector and trim combinations, and approvals for Type IC, wet location, air-tight construction, and open plenum, the LD4S-HO gives specifiers a stronger-output architectural option without moving to a larger aperture.
Why this downlight stands out
- High-output 18W platform for stronger light levels
- Deep regressed architectural design for a refined low-glare appearance
- 90+ CRI for premium color quality
- 30° standard beam with optional 15° and 60° optics
- Fixed CCT, 5CCT selectable, and Dim to Warm options
- Type IC, wet location, air-tight, and open plenum rated
- Driver inside connection box with Romex quick connectors
- No housing required
Available light options
- 2700K
- 3000K
- 3500K
- 4000K
- 5000K
- 5CCT selectable: 2700K / 3000K / 3500K / 4000K / 5000K
- Dim to Warm 3000K to 2000K
- Dim to Warm 3000K to 1800K
Available reflector and trim combinations
- White Reflector / White Trim
- Silver Reflector / White Trim
- Black Reflector / White Trim
- Black Reflector / Black Trim
- Silver Reflector / Black Trim
- Oil Rubbed Bronze
Key specifications
| Model | LD4S-HO |
|---|---|
| Fixture Type | 4" Square Deep Regressed LED Downlight |
| Power | 18W |
| CRI | 90+ |
| Beam Angles | 30° standard, 15° optional, 60° optional |
| Default Driver | 120V AC Triac dimmable |
| Optional Driver | 120V-347V AC 0-10V dimmable |
| Location / Construction Ratings | Type IC, Air-Tight, Wet Location, Open Plenum |
| IP Rating | IP54 |
| Ambient Temperature | -40°F (-40°C) to +104°F (+40°C) |
| Projected Life | 70% light output at 50,000 hours |
| Certification | cULus |
| Warranty | 10 Year Residential / 5 Year Commercial |
| Dimensions | ID 4" | OD 4 7/8" | Ceiling clearance required 3" |
| Cutout | 4" to 4 1/4" |
Lumen output
| Light Engine | Lumens |
|---|---|
| 2700K | 1460 lm |
| 3000K | 1580 lm |
| 3500K | 1490 lm |
| 4000K | 1630 lm |
| 5000K | 1590 lm |
| Dim to Warm 3000K-2000K | 1220 lm |
| Dim to Warm 3000K-1800K | 1400 lm |
5CCT lumen output
| 5CCT Setting | Lumens |
|---|---|
| 2700K | 1280 lm |
| 3000K | 1350 lm |
| 3500K | 1470 lm |
| 4000K | 1540 lm |
| 5000K | 1540 lm |
Accessories sold separately
- Optional 120V-347V 0-10V dimmable driver: LLL-LD2050TR
- 26" flat rough-in plate: RIP414
- 13" flat rough-in plate: MP4-2
- 13" flanged rough-in plate: MP4
- 4 1/8" hole flanged with hanger bars: FRP4
- Armored low voltage extension 10 ft: MEC10
- Emergency driver 8W 120V-347V input: BLD-HM08D-YYY
Frequently Asked Questions
What is the difference between LD4S and LD4S-HO?
The LD4S-HO is the higher-output 18W version of the LD4S family, delivering more light while keeping the same deep regressed 4-inch square architectural form factor.
What beam angles are available?
The standard beam is 30 degrees, with optional 15-degree and 60-degree versions available.
Is the LD4S-HO rated for wet locations and insulated ceilings?
Yes. It is Type IC, air-tight, wet-location approved, and open-plenum rated.
What driver is included?
A 120V AC Triac dimmable driver is included by default. An optional 120V-347V AC 0-10V dimmable driver is available separately.
Does this fixture require a housing?
No. The LD4S-HO is designed for no-housing-required installation.
Spec / Sell Sheets
Spec / Sell Sheets
