Commercial Lighting Design Analysis

Professional lighting plan based on IES guidelines and industry standards

Room Dimensions

40 × 30 × 10 feet

1,200 sq ft total area

Space Purpose

Open Office

Computer work environment

Target Light Level

500 lux

IES recommended for office work

Space Analysis

Floor Area

1,200 sq ft

Room Cavity Ratio

2.5

Utilization Coefficient

0.65

Lighting Recommendations

Recommended Lighting Type

LED Panel Lights - Energy efficient with excellent light distribution

Wattage: 40W per fixture

Lumens: 4,000 lm per fixture

Color Temperature: 4000K (neutral white)

CRI: >80 for accurate color rendering

Layout Calculations

Fixture Requirements

Required Fixtures: 15 units

Grid Pattern: 5 × 3 layout

Spacing: 8' × 10'

Mounting Height: 9 feet

Fixture Layout Pattern

Technical Specifications

40W

Per Fixture

600W

Total Power

0.8:1

Uniformity Ratio

520 lux

Avg Illuminance

Energy Efficiency

Efficiency Metrics

Lumens per Watt: 100 lm/W

Annual Consumption: 1,314 kWh

Estimated Annual Cost: $157

Energy Savings

Compared to traditional fluorescent lighting:

Energy Reduction: 45%

Annual Savings: $106

Payback Period: 2.1 years

Compliance & Standards

✓ IES Standards

Meets IES RP-1-12 recommendations for office environments (300-500 lux)

✓ ASHRAE 90.1

Compliant with energy efficiency requirements (0.9 W/sq ft limit)

✓ Building Codes

Meets commercial building lighting requirements and safety standards

✓ ADA Compliance

Adequate lighting levels for accessibility requirements

Additional Recommendations

Control Systems

• Daylight sensors for automatic dimming near windows
• Occupancy sensors for energy savings in unused areas
• Zone-based dimming controls for task flexibility

Maintenance Schedule

LED fixtures: 50,000+ hour lifespan
Cleaning: Every 6 months
Expected replacement: 8-10 years

Implementation Cost

Estimated total: $2,250
Cost per sq ft: $1.88
ROI timeline: 2.1 years

Commercial Lighting Design Guide

Room Dimensions

Space Specifications