Expanding the visual space: the light that makes a room feel bigger

Count three sources per room, never just one: a broad light, a grazing light on the walls, a low lamp in a corner. Set them all between 2700 K and 3000 K, and spread the power instead of concentrating it at the centre of the ceiling. Lit walls recede, the floor falls back.

How do you expand the visual space of a room with lighting?

Light the walls before aiming at the floor. Two sources directed at a pale wall or at the ceiling push back the perceived limits, a third lower one adds depth. The eye judges the size of a room by the distance it guesses between the walls, not by the square metre.

This is the principle we apply to every living room lighting project: several spread points, never a single one at the centre.

Why does a single source flatten the room?

A central pendant creates a sharp cone. Everything outside that cone becomes a shadow zone, and the corners look deeper than they are.

• A single source draws a shaft of light and leaves the corners in the dark.
• Two crossed sources erase hard shadows and make the corners disappear.
• A low source sets up a foreground, and the room gains depth.
• A lit wall seems to recede, and the volume follows.

When ceiling height is limited, a wide-diffusion LED ceiling light replaces the pendant without crushing the volume.

Which mounting heights should you use?

There is no single height, but a few reference points that come up in almost every project.

What are the 3 lighting modes that make a room feel bigger?

General lighting, task lighting and accent lighting. The first lays a soft base without hard shadows, the second concentrates light where you read or work, the third grazes a wall or highlights a volume. It is the differences in intensity between them that make the room feel bigger.

General lighting: how do you stop it flattening the room?

Strong, badly placed diffusion crushes everything: light falls from the ceiling, the floor shines, the walls stay grey.

In a living room, a pendant with a large diffuser spreads light better than a flat ceiling light, provided it stays above eye level.

The goal is not to light the room, but to make you forget the source.

That is the definition of what ambient lighting is: a light you do not look at, and that nevertheless does everything.

Task lighting: where should you put it?

Where your eyes work, and nowhere else: a reading armchair, a kitchen worktop, a desk. The source goes above or slightly behind the shoulder, never in the line of sight.

A single intensity for the whole apartment is as tiring as a room that is too dark. Variety matters more than power.

How do you bring light back into a dark room?

Grazing the walls: light applied along a pale surface rises and spreads instead of falling. Add a task source exactly where you read or cook, then a low lamp in a corner. Three different intensities are better than one more powerful lamp.

The move is to light a dark room through its vertical surfaces rather than its floor. A stronger ceiling light solves nothing: it lights the floor and leaves the walls dark.

Grazing light: the most effective move

Place the source a few centimetres from the wall, pointing down or up, but always against the surface. The light bounces back and the wall looks lit from within.

• Grazing upwards: the wall stretches, the ceiling brightens.
• Grazing downwards: the light guides and secures a corridor.
• Matte wall: the light spreads instead of marking.
• Glossy wall: the light bounces, but the texture stays visible.

This surface work has a name: accent lighting.

Lighting the work area

In an office, a kitchen or a reading corner, the light must fall on the surface, not on the face.

• Desk: side source, at shoulder height.
• Worktop: under-cabinet light, aimed backwards.
• Reading armchair: adjustable lamp, placed on the opposite side to the hand holding the book.

A well-placed task light often replaces two ambient sources.

How do you deal with dead corners?

A recessed corner never receives light from a ceiling fixture. That is where a lit piece of furniture changes how the room reads, because the corner stops being a black hole.

A floor lamp placed in that corner creates a low pool of light, and the eye finds a resting point there.

In a full renovation, home staging and renovation are handled together: the position of a lamp is decided before the paint.

How do you bring light into a room with no windows?

Light the walls, not the centre. A wall light that washes the wall, a pale tint and a mirror placed opposite are enough to suggest an opening. Add a source that lights that mirror: the reflection then works like a second window.

Wall light and mirror: the duo that doubles the light

A mirror does not create light, it sends it back. There still has to be light to send back, and it has to come from the right side.

• Wall light aimed upwards: it washes the wall and rises to the ceiling.
• Mirror opposite: it doubles the source instead of reflecting it at an angle.
• Large format: a narrow mirror reflects less than a wide surface.
• Pale frame: it blends into the wall instead of creating a dark patch.

The role of wall lights in a windowless corridor or an entrance is the same as anywhere else: light the wall, never the person.

A living room wall light placed at 1.80 m washes the wall over its full height and disappears into the decor.

Do you need an IP44 wall light in a damp room?

No, except near a water point. In a survey of 250 references from our catalogue on 5 October 2026, 94% are rated IP20, 3% IP65 and 2% IP44.

Switch to an IP44, IP45 or IP65 rating around a washbasin, a shower or in an unheated room. Elsewhere, IP20 is enough and there is no reason to pay for unnecessary sealing.

For a specific model, the reviews left by buyers are gathered on the Designix Google listing, updated continuously.

If you would rather start from your own measurements than from a model, you can describe your room to our advisers: we will tell you where to put what.

How do you increase the brightness of an apartment?

Work on surfaces before working on watts. Pale matte walls, white or beige lampshades and well-chosen bulbs change the picture before any fixture is replaced. Then combine several light points instead of one central one.

The issue often comes down to a few degrees of tint: making a room brighter starts with the walls and the lampshades, before the electrics.

Which wall and lampshade colour should you choose?

The paler and more matte the surface, the more it diffuses. A dark lampshade absorbs part of the bulb's output and turns it into shadow.

• Matte white: the safest value for a wall that has to reflect.
• Beige or cream: the same effect, with a warmth that white alone does not bring.
• Pale lampshade: it lets the output through instead of filtering it.
• Opaque dark lampshade: reserved for cosy moods, never for blind rooms.

A white lampshade on a table lamp, a 2700 K bulb for the living room and 3000 K for the kitchen: two settings that change the perception of a whole apartment.

Why combine several light points rather than one central one?

Three weak sources light better than one strong source, because their shadows compensate for each other. The central point remains, but it no longer carries the whole room.

• A high point for general light, dimmable if possible.
• A task point over the area where you read, write or cook.
• A low point for atmosphere and corners.

This is where the choice matters: the Alternative Keria Luminaires collection brings together 21,689 references as of 5 October 2026, enough to search by room, style, shape, colour and base.