Dual Reflection Technology
Creates depth and distant focal points
Each sky panel replicates a double pane window, inducing a secondary reflection pulled from natural glazing, to enhance depth and spatial perception across the whole cloud.
The Ambient Cloud Display
Circadian Clouds
A suspended architectural sky, built from modular panels that bring the color and rhythm of real daylight to any ceiling overhead.
Overview
A sky that floats
overhead.
Circadian Clouds is a suspended architectural sky, built from modular 2×2 foot panels that scale from a six foot square up to fourteen feet across. It interleaves tunable Circadian Sky panels with high CRI white panels, delivering the mesmerizing depth of an open sky and the task light a workspace needs from a single floating ceiling.
Built for Armstrong FORMATIONS clouds, it leads the industry in melanopic ratio, color temperature range, and color accuracy, the clear choice for transforming enclosed rooms into bright, open spaces.
- CCT
- 2,200–200,000 K
- Melanopic Ratio
- 0.4–1.9
- CRI
- 92–98
- Sizes
- Up to 14×14'
Circadian Health
Light that moves with you.
Daylight is more than illumination. It is the signal that sets the body's internal clock. Circadian Clouds recreates that signal overhead, wherever a real window cannot reach.
Industry Leading Melanopic Ratio
Melanopic ratios from 0.4 to 1.9, the high and low EML the body needs across the day to stay entrained.
A Rhythm From Dawn to Dusk
An automatic schedule shifts color temperature and intensity from cool morning light to warm golden hour.
Lifelike Color
CRI 92–98 and <0.003 Duv across every CCT, so skin tones and materials read accurately overhead.
Full Spectrum, Free of UV
The full visible spectrum of natural daylight, without the harmful ultraviolet of real sun exposure.
Built for WELL v2
Engineered to help projects meet multiple WELL Building Standard circadian lighting credits.
A Dual-Panel System
Tunable sky panels interleave with high CRI white panels, balancing immersive daylight with the task light a room needs.
How It Works
Depth and color, engineered.
Every cloud is built from tunable Circadian Sky panels, interleaved with high CRI white panels. The same technology that makes a single skylight believable scales seamlessly across the entire ceiling.
Precisely Calibrated Color
Accurately follows the daylight locus
With an unparalleled color temperature range of 2,200 K to 200,000 K, the cloud can emulate a deep blue sky and create diverse moods. Warm light fosters comfort, while cool light enhances clarity and alertness.
Specifications
Engineered, panel by panel.
- Cloud Sizes
- 15 configs · 6×6' to 14×14' · modular 2×2' panels
- Compatibility
- Armstrong FORMATIONS® Accent Clouds · AXIOM® trim (2", 4", 6")
- Dual Panels
- Circadian Sky 45W / 2,610 lm · White LED 32W / 5,000 lm
- Color Temperature
- Sky 2,200 – 200,000 K · White 3,000 / 3,500 / 5,000 K
- Color Accuracy
- CRI 92–98 · ≤0.003 Duv across all CCTs
- Melanopic Ratio
- 0.4 – 1.9 (industry leading)
- Controls
- Casambi, DALI-2 DT8, DMX, 0-10V · one signal per cloud
- Zone Sync
- Wireless — one primary panel, secondaries mirror
- Suspension
- Adjustable cable · 12"–120" drop · 18" clearance above
- Dimming
- Flicker free at 40 kHz · 0.1%–100%
- Power
- Integrated supplies · 110–277VAC · DC compatible
- Warranty
- 5 years · L70 > 100,000 hours
- Safety
- TÜV certified · UL 1598 · IC rated · Seismic A–F
Resources
Documents and guides.
This product is protected by one or more patents with additional patents pending. View all patents
Design & Control
Specify with confidence.
CircadianLab is photometric design in the browser, built for Circadian Clouds. Model the space, lay out the array, and validate the wellness metrics, then hand off a schedule the Studio app drives on day one.
- Lay out the cloud
Size the room, drop in a Circadian Clouds array, and see the daylight it delivers before a single panel ships.
- Prove the metrics
Calculate melanopic EDI, illuminance, and glare live against WELL v2 thresholds, straight from the browser.
Open in Circadian Lab
Simulate your Circadian Cloud layout with real photometric data. See how different arrangements affect EML, illuminance, and glare across your room.
EML
Equivalent Melanopic Lux
Measures light's impact on circadian rhythm via melanopsin receptors. WELL v2 recommends 275+ EML at eye level.
Foot Candles
Illuminance
Light intensity on work surfaces. Offices typically need 30-50 fc; detailed tasks may need 50-75 fc.
UGR
Unified Glare Rating
Quantifies visual discomfort from glare. Below 19 is comfortable for office work; below 16 for detailed tasks.
Circadian Sky 2×2 (4)
LED 2×2 Panel (12)
16 panels total
Open in Circadian Lab
Free tool — no account required. Uses real IES photometric files for accurate simulation.
Featured Innovation
SkySync™
Sold separately
The first sensor that captures the true color of the sky and streams it to your Circadian Clouds in real time, over Bluetooth.
See SkySync
In the Wild
Daylight, everywhere it's needed.
The Studio App
Your sky, in your hand.
Innerscene Studio is the official app for every Circadian Sky and Virtual Sun fixture you own. Connect over Bluetooth, shape your circadian schedule, and sync with the real sky — all from your phone or tablet.
- Secure Bluetooth connection
Open the app in range of any fixture and it appears instantly, no QR codes or provisioning portals. Control stays locked behind the password you set at commissioning.
- Direct control
Color temperature, brightness, and the automatic schedule — all from a single home screen.
- Schedule editor
Draw your own circadian curve with as many keypoints as you like, then export or import it as a file.
- SkySync integration
Pair a window-mounted SkySync sensor and watch your Virtual Windows and Skylights track real sky conditions (CCT, lux, and all) in real time.
Perspectives
“Most of our guests think we have windows, and it is natural light. It creates a very nice environment and boosts you for your workout. The space also looks much bigger.”
Marion Kapellas
Spa Manager, AMAN at the Connaught
United Kingdom
Ready to bring daylight indoors?
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