Which type of upper moulding hides the LED lighting directed at the artworks?
July 14, 2026 · 6 min read · by Walensky
There is something almost magical about a perfectly lit artwork. No visible source, no unsightly cable, just light that seems to come from nowhere to caress the pigments and reveal every nuance. This discreet miracle has a name few people know: the concealed light moulding, also known as the LED cove cornice. Here is what it concretely brings you: total concealment of the directed LED lighting, dramatic enhancement of your works, and an architectural elegance that turns an ordinary wall into a true private gallery.
You have invested in magnificent paintings, perhaps even in a high-performance LED system, and yet the result disappoints you. The light source shows, the cornice looks like an afterthought, and the whole lacks real coherence. You are not alone in this situation. The good news: the solution is precise, accessible, and it will radically change the way you perceive your interiors.
The cove cornice: the secret of art galleries you can adopt at home
In the most refined museums and commercial galleries, the lighting is never seen — it is felt. This result is achieved thanks to an upper cove cornice, an architectural moulding with a built-in recess, called a cove or technical housing, designed precisely to hold an LED strip or a rail of directional spotlights. The moulding thus completely hides the light source while allowing the light to escape downward, precisely aimed at the works hung beneath.
This type of upper concealed-lighting moulding exists in several variants: the classic cornice with an open channel on the wall side, the rebated LED moulding with a return lip directed forward, and the profiled cove cornice in anodised aluminium for a more contemporary look. All follow the same principle: creating a soft shadow zone that conceals the LED lighting while projecting its light exactly where you wish.
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Discover this paintingWhy the upper moulding changes everything for showcasing your paintings
A painting without directed light is a half-hearted conversation. The painting speaks, but the context does not listen. An cove cornice with LED housing positioned high acts as an invisible frame around the visual experience: it focuses attention, creates a natural hierarchy in the room, and gives each work a scenographic presence that any collector will immediately recognise.
The mounting height is decisive. An concealed LED light moulding placed 30 or 40 centimetres above the top edge of the painting allows an ideal angle of incidence, generally between 25 and 35 degrees, to avoid reflections and maximise the rendering of textures. It is precisely this angle that museum curators calculate for each exhibition. You can apply the same logic in your living room, your library or your entrance hall.
The three major families of concealed-lighting mouldings to know
The first family is the classic cornice in staff or plaster with an open channel. It blends beautifully into Haussmann-style interiors, period apartments or houses with character. Its hollow channel can accommodate a flexible LED ribbon, oriented downward and towards the wall bearing the works. The result is remarkably architectural in its restraint — it seems the light emanates from the ceiling itself.
The second family is the extruded aluminium profile moulding, often used in contemporary interiors, design apartments or creative workspaces. These technical profiles incorporate a precise groove for an LED strip as well as an optional diffuser — opal for soft light, clear for crisp, directional light. They are easily painted in the colour of your choice.
The third family, rarer but very effective, is the solid wood moulding with a sculpted channel. Ideal for library, English club or cabinet of curiosities settings, it combines the warmth of oak or walnut with an invisible technical function. Some cabinetmakers make it to measure with a rebate of 4 to 5 centimetres precisely sized to house a high-density LED strip.
How to choose the right moulding for your interior style
Choosing an upper moulding for directed LED lighting must be done in harmony with the overall atmosphere of the room. In a classic or Haussmann-style apartment, favour a cast plaster cornice with a channel at least 6 centimetres deep, painted in the same shade as the ceiling so it visually disappears. In a minimalist contemporary interior, opt for a recessed or flush aluminium profile, almost invisible, which creates no visual break with the ceiling line.
For library spaces or rooms with a strong decorative identity, the carved wooden moulding with an LED channel is often the most coherent choice. It converses naturally with framed paintings, antique bindings and collectors' objects — all that aesthetic vocabulary that calls for warm, precise, enveloping light.
Mistakes to avoid when installing an LED concealed-light cornice
The first mistake is undersizing the channel. An LED strip must sit without being crushed or bent at a sharp angle — allow at least 4 centimetres of usable width. The second mistake is using a cool-spectrum LED strip (above 4000 Kelvin) for paintings with warm tones: reds and ochres lose all their intensity. Aim for a colour temperature between 2700 and 3000 Kelvin for figurative or academic works, and 3500 Kelvin for more graphic contemporary works. The third mistake is ignoring the colour rendering index (CRI): below 90, pigments are betrayed. Require a CRI above 95 for faithful reproduction.
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The concealed light moulding as an architectural feature in its own right
What is fascinating about the LED cove cornice is that it does not merely hide a light source — it redefines the architecture of the room. It creates a strong horizontal line that visually structures the space, enhances the perception of ceiling height, and establishes a delimited zone of contemplation where the works reign supreme. It is a dual aesthetic investment: functional for the lighting, structuring for the overall composition of the room.
The most demanding interior architects systematically use these upper concealed-lighting mouldings in their high-end projects, precisely because they sign the space without showing themselves. A wall of paintings lit by a well-designed cove cornice gives the impression that the entire room was conceived by a professional — even if you carried it out yourself.
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Discover this painting →Conclusion: a moulding, works revealed, a room transformed
Imagine entering your living room or library and seeing your paintings gently illuminate, with no visible source, in a warm and precise light that honours every brushstroke. This is exactly what a well-chosen LED cove cornice makes possible — and it is within everyone's reach. Begin by identifying the style of your interior, choose the moulding family that suits it, and invest in an LED strip with a high CRI and a colour temperature consistent with your works. Then watch the transformation: your walls will never look the same again.
Frequently asked questions
How do you hide an LED strip that lights paintings?
With a cove cornice: a moulding with a built-in recess, called a technical housing, designed to hold an LED strip or a rail of directional spotlights. The moulding completely hides the source while letting the light escape downward, precisely aimed at the works hung below.
At what height should a lit cornice be fitted above a painting?
Allow thirty to forty centimetres above the top edge of the artwork. This distance gives the ideal angle of incidence, the one museum curators calculate, which avoids reflections while revealing textures. The same logic applies in a living room, a library or an entrance hall.
Which moulding should I choose according to my interior style?
In a classic or Haussmann-style apartment, a cast plaster cornice painted in the ceiling tone visually disappears. In a contemporary interior, a recessed or flush aluminium profile creates no break. For a library, the solid wood moulding with a sculpted channel remains the most coherent.
Which mistakes should be avoided with LED lighting on paintings?
Do not undersize the channel: the strip must sit without being crushed or bent at a sharp angle. Avoid a spectrum that is too cool, which dulls reds and ochres; aim for warm light for figurative works. Finally, require a high colour rendering index.
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