Modern living room with a square LED sky ceiling panel showing blue sky and clouds above a cream sectional sofa


C&C Lighting Square E-Window Skylight recessed ceiling panel displaying a vivid blue sky with animated clouds through a slim white aluminium frame

Square E-Window Skylight

A recessed ceiling system that recreates the look of a real skylight, indoors. The EWINDOW3 1212S projects animated clouds and a full 24-hour sunlight cycle across a 1080 × 1080 mm opening. Ra 98 color rendering, a CCT range of 2500K to 10,000K, and automatic brightness adjustment bring a daylight-like atmosphere to spaces with no access to natural light.

415W Ra 98 2500K – 10,000K 3,000 lx @ 3 m Dynamic Sky + Sun Cycle 1080 × 1080 mm 50,000 hrs
Download Spec Sheet

Highlighted Features

Dynamic Sky Effect
Real-time animated clouds move and change across the 1080 × 1080 mm light outlet, creating a convincing outdoor sky impression on any ceiling.
24-Hour Sunlight Cycle
Automatically simulates morning, noon, dusk, and a starry sky through a full day cycle, shifting both brightness and color temperature to match the time of day.
Ra 98 Color Rendering
Exceptionally accurate color reproduction makes skin tones, plants, materials, and furnishings appear as they would under natural daylight.
Wide CCT Range
Adjustable from 2500K to 10,000K, covering everything from warm sunrise tones through to cool overcast daylight, either automatically or manually.
High Illuminance
Delivers 3,000 lx measured at 3 m, providing meaningful task-level brightness in addition to the sky visual effect.
Sky Linkage
Multiple panels can be joined and synchronized so the sky effect flows continuously across a larger ceiling area without interruption.
Dual Control Modes
Run in fully automatic 24-hour mode, or switch to manual control to set a fixed brightness and color temperature. Supports PWMI, DALI, RS-485, APP, DMX, and 0-10V protocols.
Slim Recessed Frame
The narrow front frame (1220 × 1220 mm) sits flush with the ceiling surface, maintaining a clean architectural finish with no visible bulk.
Tempered Glass Surface
Durable tempered glass diffuser with an aluminium alloy frame for a premium, long-lasting finish.
External Power Supply
48V HLG external driver runs on 90 to 277V AC, keeping the panel body slim and allowing the driver to be located above the ceiling for easy service access.
Long Lifespan
Rated for 50,000 hours of continuous operation.

How to Order

The Square E-Window Skylight is a single recessed ceiling unit. Multiple units can be linked for larger installations. To place an order, contact us with your project name, quantity, ceiling height, and preferred control protocol.

EWINDOW3

Series
–
1212

1080×1080 mm
–
S

Square
Control Protocols
PWMI PWM dimming input
DALI DALI bus control
485 RS-485 protocol
APP Mobile app control
DMX DMX512 control
0-10V Analog dimming
Sky Mode
Auto 24-hour sunrise to starry sky cycle
Manual Fixed brightness and CCT
Linkage
Single Standalone installation
Multi Synchronized sky across multiple panels
Power
415W 48V HLG external driver
90-277V AC input voltage range

For full technical specifications, dimensional drawings, and installation details, download the product spec sheet.

Download Spec Sheet

More About the E-Window Skylight

Specifications at a Glance
Model EWINDOW3 1212S
Power 415W
Power supply 48V HLG external driver
Input voltage 90 to 277V AC
Illuminance 3,000 lx at 3 m
CCT range 2500K to 10,000K, continuously adjustable
Color rendering Ra 98
Light tilt 90°
Sky effect Dynamic sky with animated clouds
Sunlight cycle Automatic 24-hour cycle (morning, noon, dusk, starry sky)
Control modes Automatic or manual; PWMI, DALI, RS-485, APP, DMX, 0-10V
Light outlet size 1080 × 1080 mm
Ewindow body size 1170 × 1170 × 121 mm
Ceiling hole size 1195 × 1195 mm
Holding frame size 1210 × 1210 × 68 mm
Front frame size 1220 × 1220 × 52.8 mm
Min. ceiling height 200 mm above ceiling surface
Shell material Aluminium alloy
Surface material Tempered glass
Weight 40 kg
IP rating IP20
Operating temperature -20°C to 40°C
Rated lifespan 50,000 hours
Sky linkage Multiple panels can be joined and synchronized
Sky Effect and Sunlight Cycle Explained

The E-Window operates in two distinct visual layers that can be used independently or together:

  • Sky light only: The panel displays moving clouds across a soft blue sky. This provides ambient, evenly diffused illumination similar to overcast natural daylight. It is the quieter, more subdued mode suited to reception areas, lounges, and residential spaces.
  • Sky light and sun light together: A second, high-brightness vertical beam simulates direct sunlight, casting defined shadows as it would through a real skylight. This mode increases the perceived depth of the effect and is well suited to retail, hospitality lobbies, and architectural feature installations.

In automatic mode, the panel progresses through the full day from sunrise warmth through noon brightness, into dusk amber tones, and finally a starry night sky, all without any manual input. The CCT shifts automatically from warm (2500K sunrise) through cool (10,000K midday) and back, mirroring the natural arc of outdoor daylight.

Installation Requirements

The E-Window Skylight recesses into a suspended or structural ceiling. Key measurements to confirm before ordering:

Dimension Size Notes
Ceiling hole 1195 × 1195 mm Cut before fitting the holding frame
Ewindow body 1170 × 1170 × 121 mm Sits above the ceiling line
Holding frame 1210 × 1210 × 68 mm Supports the body in the ceiling opening
Front frame (visible) 1220 × 1220 × 52.8 mm Flush-mounted decorative trim
Min. ceiling cavity 200 mm above ceiling Required for the body, driver, and cabling

The external 48V HLG power supply mounts above the ceiling, separate from the panel body. An aviation connector links the driver to the panel for a clean, serviceable connection. High-quality mounting accessories are included.

At 40 kg, the panel requires a ceiling structure capable of supporting the load. Confirm structural adequacy with your contractor before cutting the opening.

Installation must be completed by a qualified electrician or contractor in accordance with local building and electrical codes.

Control Options

The E-Window supports both automatic and manual operation, and is compatible with multiple control protocols for integration into building automation or AV systems:

  • Automatic mode: The panel runs its full 24-hour sky and sunlight cycle without any external input. Brightness and CCT shift continuously throughout the day.
  • Manual mode: Set a fixed brightness level and color temperature to suit the space or time of day. Useful when the panel is used as a static light source rather than a dynamic skylight.

Supported control protocols: PWMI, DALI, RS-485, APP (mobile), DMX512, and 0-10V analog dimming. Confirm your required protocol at time of order.

Sky Linkage for Larger Installations

Multiple E-Window panels can be connected so their sky animations play in sync across a larger ceiling. When linked, clouds move continuously from one panel to the next rather than each panel running its own independent loop, creating the impression of a single large skylight.

This is particularly effective in long corridors, open-plan offices, retail galleries, and wellness spaces where a continuous overhead sky creates a more immersive atmosphere. Contact us to discuss grid configurations and synchronization wiring for your project.

Where to Use It
  • Offices and co-working spaces: Replacing fluorescent overhead lighting with a dynamic sky panel reduces the visual monotony of interior spaces and supports circadian rhythm through automatic CCT shifting.
  • Retail and showrooms: Ra 98 color rendering makes merchandise, art, and materials appear under true-to-life daylight. The sun light mode can be used to spotlight specific areas.
  • Hospitality and hotels: Lobbies, corridors, spa areas, and dining rooms benefit from the relaxed, daylight atmosphere the panel creates in spaces that otherwise rely entirely on artificial light.
  • Healthcare and wellness: Exposure to simulated natural light cycles supports patient wellbeing and staff productivity in windowless clinical environments.
  • Residential: Bathrooms, basements, and interior rooms that lack natural light can be transformed with a single panel recessed into the ceiling.
  • Educational facilities: Classrooms with no exterior windows benefit from the automatic day cycle, which improves alertness and comfort for students.
Frequently Asked Questions

Does the sky animation loop, or does it change continuously?
The sky effect is dynamic and changes continuously rather than looping a short clip. Clouds move and shift in real time across the panel surface.

Can the starry night mode be set to stay on indefinitely?
In manual mode you can hold any state, including a night sky scene. In automatic mode the panel follows the full 24-hour cycle and will transition out of night mode as the simulated morning begins.

How much structural support does the ceiling need?
The panel weighs 40 kg. Your ceiling structure must be rated to support this load. A structural engineer or qualified contractor should confirm this before any opening is cut.

What ceiling cavity depth is needed?
A minimum of 200 mm of clear space above the ceiling surface is required to accommodate the panel body (121 mm deep), the holding frame, and the external power supply.

Can multiple panels run different sky scenes at the same time?
Yes. Without linking, each panel runs independently. With sky linkage enabled, panels synchronize to a single continuous sky scene.

What is included with the unit?
The panel body, front frame, holding frame, external 48V HLG power supply, aviation connector, and high-quality mounting accessories are included.