Display surfaces need named planes
Retail display lighting should be noted by the surface being viewed, not by the tenancy name alone. A customer path, counter, shelf face, wall bay, mannequin, fitting-room mirror and window display can sit in the same tenancy while needing different lighting evidence.
The broader retail lighting sector page maps the main calculation pages. This guide keeps the display note itself practical: name the plane, capture the geometry, keep colour quality distinct from brightness, and note accent beam, spill to aisle, reflected glare, control scene, measured point labels and connected-load notes before judging the result.
| Retail display item | Plane to name | Note beside the value |
|---|---|---|
| Customer path near display | Floor path plus nearby vertical face. | Path width, display edge, viewing direction and active scene. |
| Service counter | Counter surface plus face visibility. | Counter depth, screen or glass reflection, staff side and customer side. |
| Shelf bay | Vertical shelf face or label face. | Shelf height, bay width, obstruction, beam aim and colour-quality need. |
| Wall display or feature bay | Vertical display face, mannequin front or highlighted object. | Target height, bay width, accent beam, spill to aisle, reflected glare and control scene. |
| Feature table | Horizontal table surface plus surrounding face view. | Table size, mounting height, beam spread and normal viewing side. |
| Fitting-room mirror | Vertical mirror and face-height zone. | Side shadows, CCT consistency, CRI/Ra and glare from the normal standing position. |
| Window display | Display face, glass line and daylight condition. | Daylight state, after-dark scene, reflection path and target surface. |
Search intent and display boundaries
Retail display searches often bundle adjacent notes. Keep the display note where the question is the viewed display item, display surface, accent beam, measured point or colour condition. When the question widens, move the detail to the stronger supporting page and leave only a short cross-reference in the display row.
| Search intent | Keep in the display note | Use another page when |
|---|---|---|
| Display shelf face or wall display | Shelf face, label face, wall bay, vertical band, point label, scene and colour-quality fields. | A long aisle run belongs with retail aisle and shelf guide. A wall-only face belongs with display wall lighting guide. |
| Mannequin or feature bay | Garment or object face, accent beam, main approach, spill to aisle, reflected glare and control scene. | A floor-path average belongs with the aisle note, not the display bay. |
| Fitting-room mirror | Adjacent display note only, if the bay affects the mirror view. | Mirror plane, face-height light, fabric colour and side-shadow notes belong with fitting-room mirror lighting notes. |
| Checkout or service counter | Display-case face, glass edge or counter display surface when it is being viewed as a display. | Counter task plane, screen reflection, staff side and customer side belong with checkout counter lighting notes. |
| Commercial or fitout outcome | No outcome claim in the lighting note. | Keep merchandising result, fitout detail and non-lighting decisions outside this display-lighting row. |
| Emergency, public-space or workplace sign-off | Boundary note only. | Responsible professional documentation should cover those claims. |
Keep display planes distinct
The task-plane table is the clearest page for deciding whether a display belongs to a floor, counter, shelf, mirror, label or wall-face note. A single floor reading can be useful for movement, but it does not describe a vertical shelf or face-level display.
Where the viewed surface is upright, keep vertical illuminance beside the note. Vertical readings are especially useful for shelf labels, wall graphics, fitting-room faces, menu boards, signs and feature bays.
| Display plane | Useful note wording | Weak note to avoid |
|---|---|---|
| Floor path | Main customer path, floor plane, normal trading scene. | Whole tenancy brightness. |
| Counter | Counter task plane, customer face direction, screen reflection noted. | Counter included in room average. |
| Shelf face | Vertical shelf face at label height, aisle viewing direction. | Shelf checked from floor lux only. |
| Wall bay | Vertical display plane, target height and wall offset. | Accent display listed without a plane. |
| Mannequin or feature bay | Garment face, object face or feature display plane, with main approach named. | Display emphasis noted without a viewed surface. |
| Mirror | Face-height vertical plane, standing position and reflection path. | Fitting room checked from ceiling output only. |
| Window | Display face, glass reflection and daylight or night condition. | Window display judged under one unnamed scene. |
Counter and shelf notes
Counters and shelves often fail for different reasons. A counter may have enough horizontal light but poor face visibility, screen reflections or harsh reflected glare. A shelf may have a readable floor aisle while lower labels, dark finishes or deep bays remain weak.
| Retail area | What to measure or estimate | Notes to keep with the value |
|---|---|---|
| Checkout or service counter | Counter plane and customer-facing vertical zone. | Screen angle, glass, staff shadow, local scene and control group. |
| Display counter | Top surface and viewed front face. | Glossy material, high contrast, beam aim and colour-quality field. |
| Perimeter shelves | Shelf face at typical viewing heights. | Upper and lower shelf difference, obstruction, label height and aisle direction. |
| Wall display or feature bay | Vertical display face, object front or garment plane. | Accent beam, wall offset, main approach, spill to aisle and reflected glare. |
| Freestanding display | Table or stand surface plus main viewing side. | Spill onto floor, beam centre, edge falloff and nearby glare view. |
| Fitting-room rail or mirror | Fabric plane, mirror plane and face-height zone. | CCT match, CRI/Ra, side shadows and reflected source view. |
For shelves and counters, the value is easier to repeat later when the note includes a short point label. Examples include "Counter front centre", "Wall bay upper shelf", "Mirror face height" or "Window left display face".
Colour quality notes
Colour appearance and colour rendering should stay distinct. Kelvin or CCT describes whether the light looks warm, neutral or cool. CRI or Ra is a colour-rendering cue. Neither value proves brightness, beam control or comfort on its own.
The colour quality table keeps CCT, CRI/Ra, task context and comparison boundaries in one compact schedule note.
| Surface being judged | CCT field | CRI/Ra field | Extra display note |
|---|---|---|---|
| Fabric, clothing or fitting room | Note the actual white-light setting. | Keep CRI/Ra beside fabric and face notes. | Check mirror direction, shadow and daylight mix. |
| Food, timber, flowers or artwork | Note the appearance under the display scene. | Keep rendering tied to the actual surface. | Dark, red, brown and green finishes can shift noticeably. |
| Jewellery, glass or polished finish | Note CCT and dimmed state. | Rendering still sits beside reflection notes. | Sparkle, reflected source images and glare may dominate the view. |
| General retail floor near display | Note adjacent-zone CCT if different. | Rendering note may be lighter than for display planes. | Do not let floor notes stand for colour-critical displays. |
| Window display | Note daytime and after-dark scenes separately where needed. | Rendering should match the scene being judged. | Glass reflection and daylight contrast can change the result. |
Beam aim and coverage
Display lighting often depends on where the beam lands. The beam angle calculator gives the geometric footprint from mounting height, target plane and beam angle. The beam angle coverage table gives quick comparison rows for common beam spreads.
| Beam note | What to write | Why it matters |
|---|---|---|
| Mounting height | Height from luminaire to target plane. | The beam footprint changes when the plane is a shelf, counter or floor. |
| Aim direction | Wall, shelf, table, counter, mannequin or window face. | The bright patch may miss the intended surface. |
| Beam angle | Stated beam angle or measured comparison basis. | Narrow and wide beams create different edge falloff. |
| Target width | Shelf width, wall bay height, counter depth or feature-table size. | The beam diameter should be compared with the display size. |
| Viewing side | Customer path, queue line, mirror position or window approach. | A comfortable beam from one side may glare from another. |
| Spill to aisle | Floor edge or aisle-side spill beside the display. | A companion floor note should not replace the display-face note. |
| Connected-load note | Lighting group, scene name and input-watt row if known. | Load notes belong beside controls and energy notes, not inside the visual judgement. |
For a shelf bay, note whether the beam covers the full display height or only the upper rows. For a counter, note whether the beam hits the working surface, the glass edge, the customer face or a screen. For a window, note whether the beam is judged against daylight, night glass reflection or both.
Vertical readings and field notes
Measured readings should match the display plane. A horizontal floor reading should not be used as the main evidence for a shelf face, wall bay or mirror. The lux meter reading table keeps point, plane, lighting state and daylight condition together. Where several points are repeated, the lux meter grid table keeps the point set stable.
Point labels should be short enough to repeat and specific enough to locate the same surface later. Keep the point, plane and condition in distinct fields rather than hiding them in one sentence.
| Point label | Plane to note | Condition to keep beside it |
|---|---|---|
| DS1 upper shelf face | Vertical shelf or label face. | Normal trading scene, aisle viewing side and obstruction note. |
| WD1 centre wall bay | Vertical wall display face. | Wall scene, aim direction, daylight state and reflected-glare view. |
| FB1 mannequin front | Garment or object face. | Feature-bay scene, accent beam, main approach and spill to aisle. |
| CD1 display counter front | Counter-front vertical plane or display top. | Glass reflection, customer side, active group and colour-quality field. |
| SA1 aisle spill edge | Horizontal floor edge beside display. | Companion movement note only, not the display-face result. |
| LG1 display track group | Load and control schedule row. | Scene name, connected-load note and visual note boundary. |
| Reading set | Better field note | What it cannot prove |
|---|---|---|
| One display point | Shelf face centre, vertical meter, normal trading scene. | Full shelf uniformity. |
| Short vertical line | Upper, middle and lower shelf points. | Every display change or future layout. |
| Counter line | Staff side, customer side and screen reflection note. | Face comfort or glare without observer notes. |
| Mirror check | Face-height vertical reading and standing position. | Formal assessment of the whole fitting-room condition. |
| Window display pair | Daytime note and after-dark note. | One all-day performance condition. |
Keep the lighting state visible: normal trading, evening display, cleaning mode, dimmed scene or daylight-assisted condition. The lighting control table keeps zone, scene and operating condition beside the reading.
Glare and reflection notes
Retail displays can look bright while still being uncomfortable or hard to read. Glare notes should describe the observer position and reflected surface, not just the lux number.
| Glare condition | What to check | Note wording |
|---|---|---|
| Counter screen or glass | Reflected source image from staff and customer positions. | Reflection visible from customer side, counter scene on. |
| Fitting-room mirror | Source view near face height and shadows on the face. | Mirror reflection visible at normal standing point. |
| Glossy shelf or display case | Bright patch on glass, acrylic, polished stone or metal. | Reflected patch across label face or display top. |
| Window display | Daylight contrast, night reflection and street-side view. | Day scene and night scene noted separately. |
| Narrow accent beam | Hot spot, missed edge and viewer eye-line. | Beam centre high on wall bay, lower shelf edge weak. |
Glare and reflection notes are not a reason to hide the calculation. They sit beside the beam, colour-quality and measured-light notes so the note says whether the display condition needs revision, another check, or a clearer boundary note.
Compact display worksheet
A useful retail display note can be short. The key is that every line ties the number or note to a named surface and condition.
| Worksheet field | Example wording |
|---|---|
| Zone | Front left wall bay, service counter, fitting room 2 or window centre. |
| Assessed plane | Vertical shelf face, counter plane, mirror face zone or display table top. |
| Point labels | DS1 upper shelf face, WD1 centre wall bay, FB1 mannequin front or SA1 aisle spill edge. |
| Geometry | Bay width, shelf height, counter depth, mounting height and target width. |
| Beam note | Beam angle, aim direction, footprint from beam angle calculator and missed-edge note. |
| Colour note | CCT, CRI/Ra and surface being judged, checked against colour quality table. |
| Reading note | Point label, plane, lux reading, scene, daylight condition and meter orientation. |
| Control scene | Normal trading, evening display, daylight-assisted, cleaning or dimmed scene, with active group named. |
| Glare note | Normal viewing side, reflected surface and visible bright source if present. |
| Load note | Connected-load group and energy row sent to the schedule note when the display group is counted separately. |
| Boundary | Ordinary display-lighting note held distinct from emergency lighting, electrical installation and formal assessment. |
Display checks by topic
A display note stays cleaner when neighbouring notes keep their own evidence. The display line can carry a short link, while the supporting page keeps the full point set, control state or load row.
| Note found during display checking | Better supporting page | What remains in this display note |
|---|---|---|
| Aisle floor average or long shelf run | retail aisle and shelf guide | Display-face points, accent beam and spill-to-aisle note. |
| Mirror, face or garment fitting check | fitting-room mirror guide | Adjacent display influence only. |
| Checkout or service counter task plane | Checkout counter lighting notes | Display-case face or viewed counter display surface only. |
| Wall-only display face | display wall lighting guide | Retail context, main approach and feature-bay boundary. |
| Reflected glare or visible bright source | glare check guide | Observer side and affected display surface. |
| Vertical measured set | vertical illuminance guide and lux meter reading notes | The display zone label and scene. |
| Control scene | lighting control table | The scene name beside each point. |
| Connected-load row | connected load table and connected load to annual kWh | Load note only. |
Display lighting companions
- Retail lighting sector page
- retail aisle and shelf guide
- Checkout counter lighting notes
- fitting-room mirror guide
- display wall lighting guide
- task-plane table
- Vertical illuminance glossary
- vertical illuminance guide
- colour quality table
- Beam angle calculator
- Beam angle coverage table
- lux meter reading table
- lighting control table
- glare check guide
- connected load table