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Lotus LD4R-HO 4" High-Output Deep Regressed LED Downlight — 18W
$40.97
Sale price
$40.97
Regular price
$64.02
Use the product options above
Lotus LD4R-HO 18W configuration guide
The selected variant above controls the price, exact SKU, availability and Add to Cart. Use this guide to confirm architecture, finish, colour-temperature behaviour, beam and wattage-matched accessories.
18W high output
Up to 1,690 lumens by CCT
Up to 1,690 lumens by CCT
Deep-regressed family
More output from the same aperture class
More output from the same aperture class
Three beams
15°, 30° or 60°
15°, 30° or 60°
Driver included
120V AC TRIAC dimmable
120V AC TRIAC dimmable
Ordering rule: The exact Lotus SKU displayed with the selected variant is the ordering contract. Choose HO because the lighting plan requires additional output—not simply because “higher output” sounds preferable.
Which LD4R model is right for the project?
| Model | Output | Choose it when |
|---|---|---|
| LD4R 15W | 15W, up to 1,500 lm | Standard output meets the lighting plan and the broadest architecture selection is desired. |
| LD4R-HO 18W — this page | 18W, up to 1,690 lm | Higher ceilings, brighter task zones or more delivered light are required. |
| LD4R-CPL | 15W or 18W | Corrosion-resistant white or black polycarbonate construction is required. |
How to select the correct variant
- Choose the architecture: Regular, Thin Trim, Trimless or sloped.
- Choose the reflector and trim finish: Select only a combination offered within the architecture.
- Choose the light behaviour: Fixed CCT, Warm Dim or 5-CCT selectable.
- Choose the beam: 30° Standard, 15° Spot or 60° Flood.
- Verify the SKU above: Use the exact finished SKU shown with the selected variant.
Warm Dim naming: 32K means Warm Dim 3000K–2000K. The 3018K configuration means Warm Dim 3000K–1800K.
Architecture and rough-in guidance
| Architecture | Installation guidance | Accessory guidance |
|---|---|---|
| Regular visible trim | 4¼-inch controlled cutout, approximately 3½-inch fixture depth and approximately 4?-inch outside diameter. | RIP414 or FRP4 |
| Thin Trim | 3¾-inch cutout. TT means Thin Trim, not Textured Trim. | RIP334 |
| Trimless / Invisible Trim | Requires architecture-specific preconstruction and ceiling finishing before completion. | RIP412 or FRP412 |
| HO sloped finished SKU | The finished configuration is valid, but the exact opening dimensions and rough-in hardware remain subject to confirmation before installation. | Confirm with project support before cutting or closing the ceiling. |
Choose the beam
15° Spot
Narrow distribution for accent and focused lighting.
Narrow distribution for accent and focused lighting.
30° Standard
Balanced architectural distribution and the default beam.
Balanced architectural distribution and the default beam.
60° Flood
Wide distribution for broader and more even coverage.
Wide distribution for broader and more even coverage.
Lens rule: Finished 15° and 60° SKUs already include the applicable optic.
Published 18W light output
Fixed CCT and Warm Dim output
| 2700K | 1,520 lm |
|---|---|
| 3000K | 1,610 lm |
| 3500K | 1,550 lm |
| 4000K | 1,690 lm |
| 5000K | 1,630 lm |
| Warm Dim 3000K–2000K | 1,310 lm |
| Warm Dim 3000K–1800K | 1,500 lm |
5-CCT selectable output
| 2700K | 1,320 lm |
|---|---|
| 3000K | 1,400 lm |
| 3500K | 1,520 lm |
| 4000K | 1,590 lm |
| 5000K | 1,600 lm |
Driver and accessory guidance
- Included: One 120V AC TRIAC-dimmable driver per fixture.
- 0–10V or 347V projects: Use the separately sold LLL-LD2050TR.
- Remote driver location: Consider the MEC10 armoured extension cable after confirming compatibility.
- Oversized regular opening: Confirm whether a GR4 goof ring is appropriate.
Core family specifications
- 18W high-output module
- 4¼-inch controlled cutout for regular configurations
- Approximately 3½-inch fixture depth
- Approximately 4?-inch outside diameter
- 90+ CRI
- Type IC, airtight, wet-location, open-plenum and IP54
- cULus certified
- Operating range: ?40°C to +40°C
- Projected life: 50,000 hours to 70% light output
- No separate recessed housing required
Documents and project support
- Download the Lotus LD4R-HO specification sheet
- Ask Simply Secured to confirm compatibility
- Request project pricing
Frequently asked questions
What is the difference between LD4R and LD4R-HO?
LD4R is the 15W standard-output family. LD4R-HO is the 18W high-output family for projects requiring more delivered light.
Are HO sloped configurations valid?
Yes. The finished SKUs are valid. The exact opening dimensions and compatible rough-in hardware should be confirmed before installation.
Is the included driver 0–10V?
No. The included driver is 120V AC TRIAC dimmable. Use LLL-LD2050TR for supported 120–347V AC and 0–10V applications.