Bring a sleek, modern aesthetic and efficient lighting to your ceiling with the Regulus 4" Square Smooth LED Downlight Retrofit (Model LR23785, Ordering Code: LED/DL4/5CCT/FL/SQ). Custom-designed for standard 4-inch recessed housings, this fixture comes complete with an E26 medium screw base adapter for a fast, toolless replacement of inefficient 60W incandescent lamps. Its smooth white square profile creates a clean, architectural finish that blends seamlessly into modern drywalls and minimalist interiors.
Operating at only 9W, this downlight delivers 765 lumens of uniform light output with an efficacy of 68 lm/W across a focused 90° beam spread. It features an integrated 5-CCT selectable switch (2700K, 3000K, 3500K, 4000K, and 5000K) backed by high color accuracy (CRI 90). Fully compatible with standard 120V TRIAC dimmers, it provides continuous brightness control. Built for long-term reliability, this luminaire offers a 50,000-hour rated life and an estimated annual operating cost of just $1.08.
Key Features:
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Clean Square Design: Modern 4-inch square smooth trim offers a sleek, flush ceiling appearance.
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5-CCT Field Selectable: Easily customize your color temperature (2700K, 3000K, 3500K, 4000K, or 5000K) using the built-in selector switch.
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E26 Base Adapter Included: Plug-and-play installation into standard 4" screw-base recessed light cans.
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High Color Quality (CRI 90): Delivers rich, natural color rendering for vibrant residential and commercial spaces.
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Energy Efficient: Uses only 9W to replace a standard 60W incandescent bulb (765 Lumens).
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120V TRIAC Dimmable: Smooth, continuous dimming performance using standard forward-phase wall dimmers.
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50,000-Hour Rated Life: Long operational lifespan significantly reduces maintenance overhead and lamp replacement frequency.
Technical Specification Table
| Technical Specification | Product Details (LR23785 Profile) |
| Item Registry Number | LR23785 |
| Ordering Code | LED/DL4/5CCT/FL/SQ |
| Product Line / Series | Regulus LED Recessed Downlight Retrofit Series |
| Housing Style & Shape | 4" Square Smooth Trim Downlight |
| Nominal System Size | 4.00 Inch |
| Physical Dimensions | 5.00" Length x 5.00" Width x 3.24" Height |
| Aesthetic Surface Finish | Architectural White |
| Optical Lens & Trim | Smooth Diffuser Lens |
| Base Interface Type | E26 Medium Screw Base Adapter |
| Power Consumption | 9W (60W Incandescent Equivalent) |
| Input Operational Voltage | 120V AC (60Hz) |
| Power Factor / Efficacy | PF 0.9 / 68 Lumens per Watt |
| Luminous Output Performance | 765 Lumens |
| Color Rendering Index (CRI) | CRI 90 (High Color Fidelity) |
| Beam Spread Angle | 90° Flood Distribution |
| Selectable Color Options | 5-CCT Switch (2700K / 3000K / 3500K / 4000K / 5000K) |
| Dimming Protocol | TRIAC Dimmable |
| Rated Operational Lifetime | 50,000 Hours |
| Estimated Yearly Energy Cost | $1.08 (Based on standard usage) |
| Operating Temperature Range | -4°F (-20°C) Min / 104°F (40°C) Max |
Logistics & Packaging Specifications
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Individual UPC Barcode: 644216071012
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Master Pack Barcode: 10644216071019
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Master Case Pack Quantity: 12 Units per Case
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Master Case Dimensions: 11.42" L x 11.26" W x 11.57" H
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Master Case Gross Weight: 9.88 lbs