Lotus LD4R-CPL 4-inch corrosion-resistant deep regressed LED downlight with white polycarbonate trim

Lotus LD4R-CPL 4" Corrosion-Resistant Deep Regressed LED Downlight — 15W / 18W

2700K — Warm White / 15W Standard Output / White CPL / 30° Standard
$46.23
$46.23 $73.38
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Lotus LD4R-CPL 4-inch corrosion-resistant deep regressed LED downlight with white polycarbonate trim
  • Lotus LD4R-CPL 4-inch corrosion-resistant deep regressed LED downlight with white polycarbonate trim
  • Lotus LD4R-CPL 4-inch corrosion-resistant deep regressed LED downlight with white polycarbonate trim
Lotus LD4R-CPL 4" Corrosion-Resistant Deep Regressed LED Downlight — 15W / 18W

Lotus LD4R-CPL 4" Corrosion-Resistant Deep Regressed LED Downlight — 15W / 18W

$46.23
$46.23 $73.38
Color Temperature
Wattage
CPL Finish + Beam

Use the product options above

Lotus LD4R-CPL 15W / 18W configuration guide

The selected variant above controls the wattage, price, exact SKU, availability and Add to Cart. Use this guide to verify output, CCT behaviour, white or black CPL construction, beam and driver requirements.

15W or 18W
Standard or high output
White or black
Complete CPL assembly
Three beams
15°, 30° or 60°
Corrosion-resistant
Polycarbonate reflector-and-trim construction
Positioning boundary: CPL means corrosion-resistant—not corrosion-proof, maintenance-free or suitable for every corrosive environment. Confirm the site conditions, electrical installation and local requirements.

When should LD4R-CPL be selected?

Model Choose it when
LD4R 15W Standard output and Regular, Thin Trim, Trimless or sloped architecture are required.
LD4R-HO 18W Higher output is required without CPL construction.
LD4R-CPL — this page A corrosion-resistant white or black polycarbonate assembly is appropriate for humid, salt-air or demanding wet-location conditions.

How to select the correct CPL variant

  1. Choose the output: 15W standard output or 18W high output.
  2. Choose the light behaviour: Fixed CCT, Warm Dim or 5-CCT selectable.
  3. Choose the finish: Complete white or complete black CPL assembly.
  4. Choose the beam: 30° Standard, 15° Spot or 60° Flood.
  5. Verify the SKU above: The exact finished SKU identifies the selected wattage, CCT, finish and beam.
Warm Dim naming: 32K means Warm Dim 3000K–2000K. The 3018K configuration means Warm Dim 3000K–1800K.

Application guidance

Application Guidance
Oceanfront soffit or salt-air exposure Potentially strong fit. Confirm the exposure, code requirements and maintenance conditions.
Sauna, steam shower or humid wet-location project Potentially strong fit. Confirm the exact fixture, driver position and local electrical requirements.
Typical dry interior Compare standard LD4R. CPL construction may be unnecessary.
Thin Trim, Trimless or sloped installation Choose LD4R or LD4R-HO. These are not CPL finish options.
Preconstruction planning: Exact CPL rough-in-plate compatibility remains subject to confirmation. Do not choose a rough-in plate based only on nominal fixture size.

Choose the beam

15° Spot
Narrow distribution for focused accents.
30° Standard
Balanced architectural distribution and the default beam.
60° Flood
Wide distribution for broad, even coverage.

Lens rule: Finished 15° and 60° SKUs already include the applicable optic.

Published output by selected wattage

15W output
2700K 1,380 lm
3000K 1,430 lm
3500K 1,400 lm
4000K 1,500 lm
5000K 1,460 lm
Warm Dim 3000K–2000K 1,130 lm
Warm Dim 3000K–1800K 1,300 lm

15W 5-CCT positions: 2700K 1,170 lm; 3000K 1,240 lm; 3500K 1,350 lm; 4000K 1,400 lm; 5000K 1,420 lm.

18W high-output performance
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

18W 5-CCT positions: 2700K 1,320 lm; 3000K 1,400 lm; 3500K 1,520 lm; 4000K 1,590 lm; 5000K 1,600 lm.

Driver guidance

  • Included: One 120V AC TRIAC-dimmable driver matched to the selected fixture.
  • Selected wattage is 15W: Use LLL-LD1535TR for supported 120–347V AC and 0–10V projects.
  • Selected wattage is 18W: Use LLL-LD2050TR for supported 120–347V AC and 0–10V projects.
  • Beam accessory: Do not add a duplicate lens when a finished 15° or 60° variant is selected.

Core family specifications

  • 15W standard-output and 18W high-output finished configurations
  • White or black corrosion-resistant CPL reflector-and-trim assembly
  • 4¼-inch controlled cutout
  • Approximately 3½-inch fixture depth
  • Approximately 4?-inch outside diameter
  • 90+ CRI
  • 30° standard beam with 15° and 60° finished options
  • Type IC, airtight, wet-location, open-plenum and IP54
  • cULus certified
  • No separate recessed housing required

Documents and project support

  • Download the Lotus LD4R-CPL specification sheet
  • Ask Simply Secured to confirm environmental or rough-in compatibility
  • Request project pricing

Frequently asked questions

Is LD4R-CPL available in 18W?

Yes. The finished SKU matrix includes both 15W standard-output and 18W high-output CPL configurations.

Is CPL corrosion-proof?

No absolute corrosion-proof claim is made. CPL provides corrosion-resistant polycarbonate construction, but suitability still depends on exposure, installation and maintenance conditions.

Can I use CPL for Thin Trim, Trimless or sloped installations?

No. CPL is its own complete white or black architecture. Choose LD4R or LD4R-HO when Thin Trim, Trimless or sloped construction is required.

Which commercial driver fits the selected CPL fixture?

Use LLL-LD1535TR with a selected 15W configuration or LLL-LD2050TR with a selected 18W configuration for supported 120–347V AC and 0–10V projects.

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