Lotus LD4R 4" Deep Regressed LED Downlight — 15W

Which LD4R model is right for the project?

How to select the correct variant

1. Choose the architecture: Regular, Thin Trim, Trimless or 5-inch sloped.
2. Choose the reflector and trim finish: Only use a finish offered within the selected 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 displayed finished SKU on the quote, purchase order and confirmation.

Match the architecture to the ceiling

Choose the beam

Lens rule: Finished 15° and 60° SKUs already include the applicable optic. Do not add a second lens unless a replacement is required.

Published 15W light output

Driver and accessory guidance

• Included: One 120V AC TRIAC-dimmable driver per fixture.
• 0–10V or 347V projects: Use the separately sold LLL-LD1535TR.
• Remote driver location: Consider the MEC10 armoured extension cable after confirming routing and compatibility.
• Oversized regular opening: Confirm whether a GR4 goof ring is appropriate.

Core family specifications

• 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 specification sheet
• Ask Simply Secured to confirm compatibility
• Request project pricing

Frequently asked questions