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Cirra is a square LED luminaire with rounded edges and a thermoformed synthetic PET felt shell. It is available in 15-, 24-, and 35-inch sizes, with surface-mounted and suspended options; the 15-inch model can also be stem mounted. For project teams, its appeal is the combination of configurable architectural lighting and a sound-absorbing material—but the available acoustic test applies to a particular array, not to one fixture or every room.
What is Cirra lighting?
Cirra is a decorative LED fixture from Eureka Lighting. The family is intended for settings such as lobbies, meeting areas, collaboration spaces, workstations, and lounges. Its square plan and rounded edges give it a distinct shape, while the felt shell makes the luminaire a potential part of a room’s material and acoustic strategy as well as its lighting plan. Eureka describes the fixture as 4.2 inches high and says concealed hooks secure it to the ceiling; those hooks allow layouts in lines, clusters, or combinations of sizes. Confirm the details for the selected model and mounting configuration in the current Cirra product information.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11The product family is not a single fixed-output fixture. Size, mounting, color temperature, optics, controls, and whether indirect light is included all affect the appropriate selection. A designer should therefore treat “Cirra” as a configurable family and verify the catalog configuration—not just the product name—before coordinating the ceiling, lighting controls, and electrical work.
What sizes, mounting options, and colors are available?
Cirra comes in 15-, 24-, and 35-inch sizes. Eureka lists surface-mounted and suspended versions, plus a stem-mount option for the 15-inch fixture. The felt shell is offered in 24 colors and contains 50% recycled content by weight, according to the manufacturer’s published product information.
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| Selection | Options documented by Eureka | What to verify |
|---|---|---|
| Size | 15, 24, or 35 inches | Available output, mounting, and control combinations for the selected size |
| Mounting | Surface mounted or suspended; 15-inch also available with a stem | Ceiling condition, suspension arrangement, and the relevant installation details |
| Felt | 24 color options; 50% recycled PET content by weight | Selected finish, availability, and any premium-color fee or longer lead time |
| Light | 2700K–4000K options; 90+ CRI | Color temperature, output, direct/indirect distribution, and the project’s control requirements |
The felt is a visible design surface, so color selection can affect how the fixture relates to surrounding finishes. Eureka notes that premium felt colors may involve extra fees and longer lead times; confirm both with the supplier when preparing a schedule. The family’s different sizes may be mixed in a layout, but a visual arrangement should not be assumed to produce the tested acoustic result described below.
How much light does Cirra produce?
Output depends on size and configuration. Eureka’s specification sheet lists direct-light figures at 4000K ranging from 956/1,374 lumens for the 15-inch fixture to 11,466/16,490 lumens for the 35-inch version. These paired values are configuration-dependent figures in the manufacturer’s sheet, not a promise that every model or control package delivers both. The sheet also lists 2700K–4000K options and a color-rendering index of 90 or higher. Check the selected catalog code and current photometric documentation for the exact output, distribution, and color temperature required.
There is also a larger figure in Eureka’s launch brochure: a maximum-output claim of 20,671 lumens for the largest Cirra. That figure should not be merged with the current specification sheet’s 16,490-lumen direct high-output figure for the 35-inch version at 4000K. They are reported in different manufacturer materials and refer to different stated contexts; the available information does not establish that they describe the same configuration or measurement basis. For a project, use the output and photometric data attached to the exact specified model rather than selecting the largest number from marketing materials.
Suspended versions can include indirect light. Eureka recommends a suspension of at least 20 inches for diffused uplight. That is a manufacturer recommendation for the uplight effect, not a universal ceiling-clearance rule; coordinate the fixture height and suspension with the room design, ceiling services, and project requirements. A surface-mounted fixture avoids a drop from the ceiling but does not provide the same suspended visual arrangement.
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Does acoustic lighting reduce noise?
Cirra’s PET felt has measurable sound-absorption performance in a laboratory-tested array, but the report does not establish how much quieter any particular room will feel. Riverbank Acoustical Laboratories tested ten 24-inch units arranged in five rows of two, spaced 12 inches apart, over 8.36 m² of extended continuous surface. For that specific setup, the report gives an Array-NRC of 0.45 and an Array-SAA of 0.41.
The report identifies ASTM C423-23 for the reverberation-room sound-absorption test and ASTM E795-23 for specimen mounting. It also limits the scope: Riverbank says results apply only to the specific sample submitted and assumes no responsibility for the performance of another sample. The array ratings depend on such factors as sample shape, size, spacing, and the extended continuous area used in the calculation. Read the Riverbank sound-absorption report with those boundaries in mind.
In practical terms, the test supports describing Cirra as a luminaire with sound-absorbing material and documented absorption in a defined array. It does not support calling a single fixture a room treatment, translating NRC 0.45 into a 45% reduction in perceived noise, or promising a particular decibel change. Sound absorption is not soundproofing or noise cancellation. A room’s dimensions, finishes, fixture quantity, spacing, and placement differ from the laboratory arrangement, so the report cannot by itself predict the acoustic outcome of a project.
If acoustic performance is a design objective, coordinate the luminaire layout with the project’s broader room-acoustics approach. Treat the tested array as evidence about that tested sample and arrangement, not as a universal rating for arbitrary layouts. The report was sponsored by Eureka; that context does not change the stated test method, but it is relevant when weighing the scope of the evidence.
Which Cirra configuration may suit a project?
Start with the room’s mounting condition and intended lighting distribution, then narrow the size and controls. The following are specification considerations, not guarantees that every combination is offered in every catalog configuration.
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- For a clean ceiling plane: consider the surface-mounted option where a suspended drop is not wanted. Confirm the ceiling attachment and model-specific installation instructions.
- For a suspended composition: choose among the available sizes and coordinate the drop with ceiling height and services. If indirect light is selected, observe Eureka’s recommendation of at least 20 inches of suspension for diffused uplight.
- For a smaller accent or a stem detail: the 15-inch fixture is the size documented with a stem-mount option. Verify which output and control selections are compatible with that mount.
- For a larger visual presence or greater stated output: the 35-inch model has the largest direct-output figures in the current sheet. Use the exact configuration’s photometric data rather than assuming the brochure’s maximum-output claim applies to the selected version.
- For a color-led interior: select from the 24 felt colors, allowing for potential longer lead times or additional fees on premium colors.
- For an acoustically considered space: use the test report as bounded evidence for the ten-unit, 24-inch array. Do not scale the array rating linearly to a different count or layout.
The manufacturer’s launch announcement describes the family as scalable and suitable for a variety of spaces, but the practical design choice still rests on project-specific lighting calculations and ceiling coordination. Multiple sizes or a visually balanced cluster may be appropriate aesthetically without matching the laboratory’s tested arrangement.
What controls and electrical details should be coordinated?
Eureka’s specification sheet lists 0–10V dimming, phase dimming in specified models, wired nLight, and nLight AIR GEN 2. Availability depends on the selected model and configuration. The sheet states that nLight integration requires a remote power pack, listing model 39NLAA for nLight AIR Gen 2 and 39NLWA for wired nLight. Confirm compatibility and whether the required power pack is part of the project’s specified package; do not assume the control system is included with every fixture.
For a coordinated specification, record the fixture size, mounting type, color temperature, direct and optional indirect light, dimming/control protocol, felt color, and any required remote power pack. Then check those selections against the current catalog configuration and the project’s controls schedule. This reduces the risk of specifying a control option that does not match the intended model or overlooking a separately required component.
Eureka describes the drivers as integrated and accessible for maintenance. That can be useful information for facilities planning, but it does not remove the need to follow the manufacturer’s installation and service guidance. The available specification sheet is labeled V1.0 — 2024.12, so project teams should verify that the document and selected configuration remain current when ordering.
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What material and care claims does the specification make?
The shell is synthetic PET felt. Eureka’s published specification sheet describes the PET panels as 100% recyclable, low-VOC, without formaldehyde, and fire rated to ASTM E-84 Class A / CAN ULC S102. These are manufacturer-published material specifications; they should not be recast as independent certifications unless separately verified for the product and project. The 50% recycled-content claim refers to the PET felt by weight, not necessarily to the complete luminaire.
For routine care, the sheet recommends cleaning the felt with a vacuum or damp cloth and advises against abrasive products, soap, and chemical cleaners. Follow the product documentation for the installed finish and consult the manufacturer if a stain or maintenance condition is not addressed there. Abrasive or chemical cleaning could be inconsistent with the maker’s stated care guidance.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What should a project team confirm before specification?
Cirra’s options make a concise coordination check worthwhile before the luminaire schedule is finalized:
- Lock the size and mount. Identify 15, 24, or 35 inches and whether the fixture is surface mounted, suspended, or—on the 15-inch model—stem mounted.
- Define the lighting requirement. Set the target color temperature and confirm the exact direct output and whether indirect light is needed. Use configuration-specific photometric information.
- Match the controls. Specify the intended dimming/control type and confirm model compatibility. Include the applicable remote power pack where nLight integration requires one.
- Coordinate geometry and ceiling conditions. Check the suspension/drop, ceiling attachment, and nearby services. For diffused uplight, account for Eureka’s 20-inch minimum suspension recommendation.
- Select the felt finish early. Confirm the color and check whether a premium option has a fee or longer lead time.
- Set realistic acoustic expectations. If the acoustic report is relevant to the design, compare the proposed array with the tested ten-unit, 24-inch configuration and consult the project’s acoustic design process for room-specific expectations.
- Use current documents. Verify the active specification sheet, model code, installation instructions, control accessories, and ordering details with Eureka or the project’s supplier.
This sequence separates aesthetic choices from electrical and performance decisions. It also helps prevent the two most common interpretation errors: treating all Cirra models as if they had identical output and treating an array-based absorption result as a single-fixture room-noise guarantee.
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How should Cirra be understood in a lighting plan?
Cirra is best understood as a configurable decorative LED luminaire whose felt surface has a documented sound-absorption result under one defined laboratory arrangement. Its size, mounting, finish, and lighting options may make it useful in spaces where a visible fixture is part of the interior design, while the test report offers a limited but concrete acoustic data point. Neither feature removes the need to verify the exact light package, coordinate controls and installation, or evaluate acoustics in the context of the actual room.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteFor the underlying product details, consult Eureka’s Cirra product page, its published specification sheet, and the January 2025 launch announcement. Use the Riverbank report for the defined acoustic test configuration and its limitations.
Frequently Asked Questions
Does Cirra’s NRC mean the room will be 45% quieter?
No. NRC is an absorption rating for the tested array, not a percentage reduction in perceived noise or a prediction of a room’s decibel level. Room-specific results depend on the room and installation, and the report does not provide a universal noise-reduction promise.
Can I use the same Cirra model number with any lighting control system?
Not necessarily. Control and dimming choices vary by configuration, and Eureka’s sheet says nLight integration requires a compatible remote power pack. Confirm the selected fixture and control components together before finalizing the schedule.
Does Eureka publish a Cirra warranty or project pricing in these materials?
The product information and specification materials cited here do not establish warranty terms or project pricing. Ask Eureka or the project’s supplier for current commercial terms tied to the exact configuration.
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Can Cirra’s felt panels be recycled after the fixture is removed?
Eureka’s specification sheet describes the PET panels as 100% recyclable, but that statement does not specify local collection availability or how to separate the panels from the complete luminaire. Confirm local recycling requirements and the appropriate end-of-life handling route.
