Retail Accent & Display Lighting
The lighting that sells — creating visual hierarchy in retail spaces.
The Accent Ratio
Accent-to-ambient ratio of 3:1 to 5:1 is the sweet spot. If ambient is 300 lux, merchandise should receive 900–1,500 lux. Below 3:1, products don't 'pop'. Above 5:1, the space feels dark and uncomfortable.
Retail Lighting Guidelines
| area | lux | cct | beam |
|---|---|---|---|
| Window display | 1,000–3,000 | 3000K | 12–24° spot |
| Feature merchandise | 750–1,500 | 3000K | 15–24° spot |
| General merchandise | 500–750 | 3000–3500K | 24–40° flood |
| Circulation | 300–500 | 3000–3500K | 40–60° wide |
| Fitting rooms | 300–500 | 3000K | Diffused, CRI 95+ |
| Cash desk | 500 | 3500K | 40° flood |
Vertical Illumination
Retail is about seeing products on walls, shelves, and displays — vertical surfaces, not floors. Specify vertical illumination targets (Ev) not just horizontal (Eh). Use wall washers and adjustable spots aimed at shelving rather than downlights that light the floor.
Color Rendering for Product Categories
Different products need different CRI emphasis. Fashion requires CRI 90+ with strong R9 (red rendering) for accurate fabric colors. Food requires high R9 and R13 (skin tones) to make products look fresh. Jewelry needs CRI 95+ with high R15 for sparkle and clarity.