Lotus LD4R-HO 18W high-output 4-inch deep regressed LED downlight with silver reflector and silver trim

Lotus LD4R-HO 4" High-Output Deep Regressed LED Downlight — 18W

Silver Reflector / Silver Trim / 2700K — Warm White / 30° Standard
$40.97
Sale price  $40.97 Regular price  $64.02
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Lotus LD4R-HO 18W high-output 4-inch deep regressed LED downlight with silver reflector and silver trim

Lotus LD4R-HO 4" High-Output Deep Regressed LED Downlight — 18W

$40.97
Sale price  $40.97 Regular price  $64.02
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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
Deep-regressed family
More output from the same aperture class
Three beams
15°, 30° or 60°
Driver included
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

  1. Choose the architecture: Regular, Thin Trim, Trimless or sloped.
  2. Choose the reflector and trim finish: Select only a combination offered within the architecture.
  3. Choose the light behaviour: Fixed CCT, Warm Dim or 5-CCT selectable.
  4. Choose the beam: 30° Standard, 15° Spot or 60° Flood.
  5. 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.
30° Standard
Balanced architectural distribution and the default beam.
60° Flood
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.

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