Lighting Upgrade Case Study Situation Lighting Upgrade Reduces Energy Consumption and Improves Light Quality JLL/Hewitt Associates were using inefficient lighting in their parking garages which was wasting energy and producing substandard light. Reduce Energy Consumption ..............61% Annual Savings ............................$73,586 Simple Payback .........................1.7 years ROI .......................................................60% CASE STUDY: Hewitt Parking Garage Solution Financial Benefits Environmental Impact Benefits of Upgrade LightSource Unlimited replaced the 150W High Pressure Sodium lighting with more efficient T-5 vapor proof fixtures that offered significant energy savings along with improved quality of lighting. Green House Gases Remo

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