Commercial Interior Lighting Design

Use 2700K (warm white) for dining rooms and lounge areas — this temperature makes food and skin tones look appealing, creates intimacy, and encourages guests to linger. Use 3000K for bar areas where a slightly brighter, more energetic atmosphere is appropriate. Avoid anything above 3500K in dining areas — cooler temperatures read as clinical and reduce perceived food quality. Install all circuits on dimmers to shift from bright lunch service settings to intimate dinner ambiance without changing fixtures or bulbs.

Expert Tip: Install dimmer scenes labeled by service period (Lunch, Dinner, Late Night) so front-of-house staff can shift the lighting ambiance with a single touch rather than adjusting individual dimmers throughout service.

Standard commercial lux requirements vary by space type and task. General office work areas: 300-500 lux at desk level. Fine detail work: 500-1,000 lux. Retail general floor: 300-500 lux ambient with 1,500-3,000 lux accent on featured merchandise. Restaurant dining: 50-150 lux for intimate atmosphere, up to 300 lux for casual dining. Hotel lobbies: 150-300 lux ambient with feature accent lighting. Museum galleries: 50-200 lux maximum for light-sensitive artifacts.

Expert Tip: These are reference levels — always verify against local building codes and the specific space program with your MEP engineer or lighting designer.

Hotel lobby lighting requires multiple layers working together to create a memorable arrival experience. Start with statement fixtures — large chandeliers, sculptural pendants, or custom lighting installations that define the property brand. Add indirect cove lighting (hidden LED strips) to wash ceilings and walls with soft, shadowless ambient light. Use adjustable spotlights to highlight architectural features, art, or floral arrangements. Layer in task lighting at check-in desks and concierge stations. Install all circuits on dimmer systems to adjust throughout the day — bright and welcoming for morning arrivals, warm and intimate for evening guests.

Expert Tip: For luxury properties, commission a custom lighting installation as the lobby centerpiece. A unique chandelier or sculptural light installation creates an immediately Instagram-able moment that drives organic social media coverage and reinforces brand identity.

US commercial lighting must comply with ASHRAE 90.1 (Energy Standard for Buildings), which sets maximum Lighting Power Density (LPD) limits in watts per square foot for different space types. Most states have adopted ASHRAE 90.1-2019 or later as their energy code. LED fixtures that are DLC (DesignLights Consortium) Premium Listed are typically compliant and often qualify for utility rebate programs that can offset 10-30% of fixture costs. Emergency egress lighting must comply with NFPA 101 (Life Safety Code) and local building codes.

Expert Tip: Start with a DLC-Premium specification to ensure energy code compliance and maximize rebate eligibility. Lightology's commercial design team can provide specifications with DLC certification documentation for your permit submittal package.