CRd-4
LED - Cleanroom 4” Downlight Luminaire Certolux CRD4 Cleanroom Downlight offers sealed, IP-rated LED lighting ideal for sterile environments and controlled spaces. CRD-4 When precision lighting matters most, the Certolux CRD-4 (4-inch) Cleanroom Downlight delivers unmatched performance with dimming capabilities down to 1%. Engineered for environments where contamination control is critical, this luminaire is ideal for cleanrooms rated ISO 3–9 and BSL 1–3. Its sealed optical assembly and flush lens design ensure a smooth, cleanable surface that supports sterile conditions, making it a top choice for labs, pharmaceutical facilities, and controlled environments. Designed specifically for cleanroom lighting applications, the CRD-4 integrates a factory-sealed COB LED engine that’s field-replaceable and serviceable from below. It offers a wide range of color temperatures (2700K–5000K) and CRI options up to 97+, including high R9 values for enhanced color rendering, critical for tasks requiring visual accuracy. The luminaire supports full-range dimming to 1% via a 0–10V protocol, with optional DALI drivers available. Its high efficacy (up to 97 lm/W) and long lifespan (L70 > 60,000 hrs) ensure reliable, energy-efficient performance. What sets the CRD-4 apart is its antimicrobial finished trims, available in gloss or matte white polyester powder coating. These finishes help inhibit microbial growth, supporting hygiene protocols in sensitive environments. The trim is secured with EPDM closed-cell gaskets that seal the lens and reflector, preventing air leakage and contamination. Installation is flexible, with compatibility for grid, drywall, and cleanroom panel ceilings up to 2.5” thick. The adjustable plaster ring allows for vertical alignment post-installation, simplifying set
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Top equivalents — 12 across 12 brands
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The Class D3X architectural recessed troffer offers subtle, clean geometry in a fully luminous door-frame design. This contemporary, high quality luminaire provides superior visual comfort and is dedicated to the latest solid-state lighting and driver technology for optimal performance and energy efficiency. Available in 2x2, 2x4, and 1x4 sizes, the D3X is an excellent choice for commercial office spaces, schools, hospitals or retail merchandising areas.
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The Fail-Safe MRI-ATR is an architectural troffer specifically designed for MRI rooms in healthcare facilities and medical spaces because of its non-ferrous construction. Available in 1'x4', 2'x2', and 2'x4' sizes, the MRI-ATR has a slim frame design allowing a fully luminous aesthetic with only the illuminated lens being visible. The fixture also has multi-channel MRI filters and a remote driver.
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- cct: 2700/5000K → 3500K
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Crafted for tight plenum spaces without compromising control, the 3" Round Shallow Downlight & Adjustable deliver boutique-level precision in a compact form. Field-interchangeable optics and 365° rotation with lockable 35° tilt give designers and installers exact control over beam placement, intensity, and alignment. Engineered for 2x4 shallow housings, these luminaires bring sophisticated lighting solutions to residential and commercial interiors where every inch and every angle counts. With translating center beam technology, light always hits its mark—eliminating unwanted side glare and ensuring every surface is beautifully illuminated.
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Break free from form with our beautifully distinguished luminaire. Enjoy unmatched appearance and optical performance with the curved WaveStream™ panel featuring AccuAim™ optics arranged in exacting patterns to provide unparalleled brightness control and optimal distributions tailored to your application. Cooper’s LuxWire™ technology delivers low-voltage power through the same cables from which it is suspended, allowing the luminaire to float beautifully in space.
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LD2B combines energy efficiency with superior cutoff, optical performance and control
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The specification grade architectural LED AT series features a back-lit curved lens and distinct center detail elements. Available in 1x4, 2x2, or 2x4 sizes and featuring multiple options, including recessed or surface mounting, integral sensor, and emergency backup drivers, the AT1 series is a diverse addition to Williams LED product offering.
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Gently sloping sides provide Whisper with interesting depth and appealing angles. Whether applied in rows or individually, Whisper brightens grid ceilings in offices, schools and hospitals and other
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PRODUCT SPECIFICATIONS DESCRIPTION The LRKT Series is a led Troffer Retrofit Kit designed to modify existing fixtures to higher efficiency LED options. It is designed to save time and energy to upgrade fixtures rather than replacing them. APPLICATIONS The LRKT Series of Troffer Retrofit Kits were designed to be high
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The SideView 2x2 recessed luminaire delivers visually comfortable and notably pleasant general illumination with an uncommonly even luminous surface.
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MOSAIC MONTAGE SPOT enhances exterior spaces with dynamic colors while providing striation-free spot illumination with up to 8 white Farino LED spotlights. The column body is illuminated from within by a secondary luminaire with dynamic light sources in RGBW or tunable white to create colorful scenes and effects or static white for an understated appearance. Fabricated from high-quality aluminum extrusions with a choice of five precisely cut panel designs, the column delivers a sophisticated presentation as an architectural element. Finish may be finely textured matte silver grey metallic, dark grey, graphite grey, or black. Special RAL colors and premium anodized finishes available on request. Consult factory for custom panel designs. All hardware is stainless steel. CSA Certified for Wet Locations.
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Local Reps
Who reps Certolux
Full directory →35 rep agencies carry the Certolux line across 50 states. Pick your state.
Alabama AL1 agency
- AMA LightingAcuity Brands
Birmingham · Mobile
Alaska AK1 agency
- Arctic Sales AgencyCurrent
Statewide
Arizona AZ1 agency
- Arizona Lighting SalesCurrent
Statewide
Arkansas AR1 agency
Statewide
California CA3 agencies
- LINX Lighting + ControlsSignify (Philips)
Los Angeles · San Diego · Ventura
- Lighting SystemsCurrent
Sacramento
- C.B.C. LightingAcuity Brands
Fresno
Colorado CO1 agency
Statewide
Connecticut CT1 agency
- illuminateCurrent
Statewide
Delaware DE1 agency
Statewide
District of Columbia DC1 agency
Statewide
Florida FL4 agencies
- Ardd + WinterCooper (Eaton)
Jacksonville
- AMA LightingAcuity Brands
Panhandle
- Florida Lighting AssociatesCurrent
Fort Myers · Orlando · Tampa
Miami
+40 more states in the full directory →
Line cards are directional — confirm coverage with the agency before routing a spec.