Lighting Contrast Ratio Calculator
Compare task, background, and adjacent surface lux ratios against an entered target ratio.
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Latest calculators
Coastal and Corrosive Environment Luminaire Check
Record coastal exposure, material, salt-spray data, and maintenance access prompts.
Luminaire Cleaning Interval Estimator
Estimate a cleaning interval prompt and adjusted maintenance factor from soiling assumptions.
Cleaning Effect on Lux Comparison
Compare before and after lux readings from the same grid after a cleaning event.
Classroom Lighting Planner
Estimate classroom desk-plane fixtures, board-lighting allowance, installed watts, and control review prompts.
Lighting Circuit Load Summary
Summarize connected lighting load across circuit groups without selecting protective devices.
Lighting Capex vs Opex Comparison
Compare capital cost, operating cost, lifecycle total, and payback against a planning horizon.
Beam Glare Risk Checker
Flag simple glare risk from beam geometry, viewer position, aiming angle, and intensity.
Alfresco Outdoor Zone Planner
Estimate alfresco outdoor fixture count, zone density, scene count, and nearby boundary review prompts.
Alfresco Lighting Planner
Estimate private alfresco fixture quantity, output, and basic boundary or product review prompts.