By Peerless
Round 4 Direct is specifiable with high and low lumen packages that make the luminaire well-suited for a variety of applications.
Round 4 Direct can be specified as nLight®-enabled to provide network controls connectivity, energy-saving digital lumen management or both. It is also available with an integrated sensor for daylight dimming and occupancy detection control. And Round 4 Direct can be configured with an “L” connector to provide seamless corner illumination.
Round 4 features eldoLED® drivers that dim to 1% with no flicker as part of a modular light engine that delivers 50,000 hours (12-15 years) of illumination to L80.
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Shape | Round |
Light Source | LED - Static |
Lumens | 400 LM, 800 LM |
CCT / LED Color | 3000 K, 3500 K, 4000 K |
CRI | 80 |
Product Type | Linear |
Compliance Listing | BAA, Chicago Plenum |
Environmental Listing | Damp Location |
Regulatory Listing | CSA |
Dimming Protocol | 0-10V, DALI |
Mounting Type | Suspended |
Voltage Rating | 120, 277 |
Series | RD4MS |
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Suggested Replacement Products
Spec Sheets
Document Type | Document Title | Description | Updated | View |
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SPEC SHEET | RD4MS LED | RD4MS LED | 5/11/2021 | View |
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Create Submittal Spec Sheet
Photometry & Revit (BIM)
Description | Report | Design Tools |
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{{photometryItem.Catalog}} | Report |
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Technical Documents (e.g. Instruction Sheets, MSDS, CAD)
Document Type | Document Title | Description | Updated | View |
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Installation Instructions | F1 Installation Instructions.pdf | F1 T-Bar Pendant Mount | 6/15/2020 | View |
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Installation Instructions | F1A Installation Instructions.pdf | F1A Installation Instructions | 6/15/2020 | View |
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Installation Instructions | F2 Installation Instructions.pdf | F2 Hard Ceiling Pendant Mount | 6/15/2020 | View |
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Installation Instructions | RD4MS_RD4MW_Installation_Instructions | Detailed Installation Instructions | 6/1/2016 | View |
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Technical Bulletins | NL_1008400_nLight Wired Architectural Ambient Tech Guide_0122_002.pdf | nLight Wired Technical Guide | 2/3/2022 | View |
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Utility Rebate Search
Replacement Parts
Confidential Documents
Marketing Material (e.g. Brochures, Sell Sheets, FAQs, )
Document Type | Document Title | Description | Updated | View |
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Brochures | Product Brochure | Product Brochure | 5/20/2016 | View |
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Need Product Assistance? (e.g. How to Buy, Technical Support, Warranty)
How to Buy
Acuity Brands lighting and controls products are primarily sold through a network of agents and distributors across North America,
as well as at more than 100 showroom or international locations and several online retailers.
Technical Support
Acuity Brands is dedicated to providing outstanding technical support. Please click on the appropriate link below, or feel free to
call us at 1.800.705.SERV (7378).
• FAQs
• Troubleshooting Information (Lighting Fixtures)
• Contact Us (Lighting Fixtures)
• Contact Us (Controls Services & Support)
Warranty
Please click on the appropriate link below to learn more about Acuity Brands terms & conditions and product warranty options.
• Review Terms & Conditions or Product Warranties
• Register a Recently Purchased Product