LED sky ceilings and virtual windows

Bring the outdoors in,
even without a window

Take away the boxed-in feeling of windowless workspaces with our LED sky ceilings and virtual windows.

Trusted by

Cumulux's expertise is recognised by leading companies, major public bodies and key players in French healthcare.

RATP
Sanofi
AP-HP, Paris public hospitals
SNCF
Siemens
Renault
RATP
Sanofi
AP-HP, Paris public hospitals
SNCF
Siemens
Renault

Sky ceiling or virtual window?

Our range comes in two families. A sky ceiling takes the place of a ceiling tile and opens the room upwards; a virtual window hangs on the wall and gives it a view out. Both come with steady daylight or with circadian lighting that changes through the day.

Designed for hospitals, care homes, clinics and offices

A hospital, an office and a care home each ask something different of their lighting. Our sky ceilings and virtual windows adapt to the setting and to the people who spend their day in it.

Hospitals & clinics

Operating theatres, imaging suites, windowless corridors: a calming sky above patients and staff alike.

Care homes

Circadian lighting and sky ceilings that give residents' days a rhythm and bring calm to shared living spaces.

Medical & dental practices

Treatment rooms, dental chairs, waiting areas: give patients something else to look at, and ease their anxiety.

Offices & open-plan spaces

Open-plan floors, meeting rooms, offices with no window: a breath of fresh air for your teams.

See where our sky ceilings are installed →

Working on a home? Basements, hallways and windowless rooms can be opened up too. Get in touch →

Installation

Quick, straightforward installation

Our LED panels are easy to fit. Drivers come pre-wired, the modules drop into existing suspended ceilings, and every product ships with detailed instructions. Your maintenance team can handle the installation, or an electrician if you prefer.

01

Plug and play

Drivers arrive wired and calibrated. Simply connect the module to a socket or to your existing power supply.

02

Fits any ceiling

T15 or T24 suspended grids, plasterboard ceilings, surface mounting or wall fixing: there is a solution for every setup.

03

Lightweight modules

Light and easy to handle, our panels can be fitted by two people. A 60 x 60 cm panel weighs just 3.67 kg.

What Cumulux lighting changes for your teams

Real, everyday benefits for the people who work in rooms without daylight.

01

A way out for the eye

Ends the shut-in feeling of rooms with no natural light.

02

Less stress

A view of sky and foliage, the core idea of biophilic design, helps people unwind.

03

In step with the body clock

Circadian models follow the day, from cool light at noon to warm light in the evening.

04

A space worth showing

Exclusive HD photography and a bevelled frame turn a dark room into a feature.

Some of our recent installations

  • Occupational health service – meeting room

    Paris, France

  • SNCF Paris Saint-Lazare – staff break room and kitchen

    Paris, France

  • Saint-Louis Hospital – oncology department

    Paris, France

  • Saint-Yves Clinic – staff rest room

    Rennes, France

  • Résidence Beausoleil care home – shared spaces

    Near Lyon, France

  • TotalEnergies – control room

    Amsterdam, Netherlands

Occupational health service – meeting room
Occupational health service – meeting room

Occupational health service – meeting room

Paris, France

Frequently asked questions

How long do Cumulux LED panels last?

A sky ceiling or a virtual window has a lifespan of around 50,000 hours.

At 8 hours a day, 5 days a week, that is roughly 25 years of use.

Every Cumulux product comes with a 5-year warranty covering parts and operation.

What warranty do your products carry?

The warranty runs for 5 years for professional customers and 2 years for private customers.

It covers every component of our sky ceilings and virtual windows: the LED panel, the power supply, the switch, the raised frame and the printed image panel.

How much power do your sky ceilings and virtual windows use?

Power draw depends mainly on the size of the fitting:

  • A 60 x 60 cm sky ceiling panel uses around 13 W.
  • A 60 x 120 cm sky ceiling panel uses 26 W.
  • Our standard virtual windows also use 26 W.

Cumulux fittings use less power than a conventional LED panel, while offering far greater visual comfort.

How does delivery work?

Our lead time is 4 weeks from receipt of your purchase order. We batch image printing to keep costs down, which is what sets this timeframe.

Once printed, the products are assembled and shipped from our warehouse.

Final delivery is handled by UPS and usually takes 48 hours within France. Transit times to other countries are confirmed with your quote.