Morning Layer
East-facing glazing in Rouen provides cool 4500K daylight until mid-morning. Our concepts supplement this with pendant clusters at 3000K positioned over communal tables, dimmed to 40 percent before 10:00 to prevent glare on reading surfaces.
Ceiling-mounted track concepts show fixture spacing at 1.4-metre intervals with 24-degree beam spreads aimed at table centres rather than guest faces.
Afternoon Transition
As solar angle shifts, west windows introduce warm lateral light. Concept plans specify sheer linen screens at 35 percent opacity to diffuse harsh afternoon rays without eliminating the connection to street activity outside.
Wall-wash sconces at 2700K activate on photocell triggers in concept specifications, maintaining 200 lux at seated eye level through dusk.
Evening Atmosphere
Evening concepts favour pools of light rather than uniform illumination. Table lamps with ceramic bases and linen shades create 150 lux islands surrounded by 50 lux ambient falloff that encourages intimate conversation.
We avoid exposed filament bulbs at guest eye level, specifying frosted globes or indirect cove lighting behind banquette backs instead.
Service Zone Separation
Preparation areas in concept drawings receive higher 400 lux task lighting on cooler 3500K circuits, visually distinct from guest zones. This separation helps future operators maintain functional brightness without flooding seating areas.
Concept sections show light spill angles so contractors can shield service illumination behind frosted glass partitions.
Fixture Specification Style
We describe fixtures by form and proportion rather than brand: "450mm diameter spun aluminium pendant, matte terracotta finish, E27 socket." Clients or contractors select compliant products matching these descriptors.
Standalone lighting concept sheets are available at €2,400 including a reflected ceiling plan and schedule of twelve fixture types.
Energy Notes
Concept schedules estimate wattage per zone using LED equivalents. A typical 90-square-metre concept café lighting load totals 2.8 kW at full output, with dimming curves reducing average consumption by approximately 35 percent.
These figures inform electrical rough-in sizing during construction and are included as appendix notes in full concept dossiers.