Read the Wall, Then Choose the Light

Look at what already occupies the elevation. Door frames, switches, radiators, artwork, shelving and curtains can leave less usable space than the room plan suggests. A wall light centred on the remaining patch of plaster may still appear misplaced if it ignores the fireplace, bed or console below it.

Mark the proposed fitting at full size with a paper template. Include the backplate and the complete depth, not just the visible face shown in a catalogue image. This simple test is particularly useful on narrow piers between doors and on walls divided by panelling.

Choose a light distribution for the surface

A pale matt wall usually reflects light softly. Deep grey, blue or green paint absorbs more of it, so the beam may look dramatic without adding much ambient light. If the room depends on the wall lights for a useful evening layer, allow for that difference when comparing fittings.

Directional light reveals texture. On original stone, lime plaster or brick, a close grazing beam can pick out joints and irregular edges. It will also make repairs, cable chases and uneven finishing more conspicuous. View the wall in side light during the day before deciding that every variation deserves emphasis.

Up-and-down fittings need clear wall area for both beams to develop. A picture rail, shelf or low ceiling can interrupt the pattern and create a bright strip that was not apparent in the product photograph. Diffused contemporary wall lights are less dependent on an uninterrupted surface, although their luminous face may be more noticeable from across the room.

Reflective materials require particular care. Mirrors, polished tiles and glazed pictures can return a sharp image of the source. Check the likely reflection from the doorway and from seated positions, not only while standing directly in front of the wall.

To complement this topic, you can also read A Bathroom Lighting Plan That Works Morning and Night.

Check projection from every approach

Projection has both a physical and visual effect. In a compact Dublin apartment hallway, a deep shade can encroach on the route and catch coats or bags. A shallow disc or folded form may provide the same visual interest while keeping the passage clear. Low-profile minimalist wall lights also tend to sit more comfortably beside closely spaced door frames.

Greater depth can work where the architecture gives it room. A projecting arm beside a built-in seat in a Galway semi-detached house can define that corner and direct light towards a book or table. The same fitting on a stair turn might be awkward when viewed from above or approached at shoulder height.

• Measure depth from the finished wall, including any projecting shade or arm.
• Open nearby doors, cupboards and curtains while the template is in place.
• Walk towards the position from both directions.
• Check the fitting against the wall while seated as well as standing.

Do not assume that a large room needs a large wall light. The relevant scale is often the section of wall available around the fitting, not the total floor area.

Assess glare from real viewing positions

Glare depends on where the eye meets the source. A fitting that feels comfortable in a hallway may be distracting beside a sofa because people spend longer looking towards it from a lower position. Bedside wall lights also need to be assessed from the pillow, particularly if the lamp or LED points sideways.