Warehouse Lighting Upgrade: Fluorescent to LED, 69% Savings

A warehouse split between 500 four-lamp T8 fixtures (128 W, 256,000 kWh a year, $30,720) and 500 LED fixtures (40 W, 80,000 kWh, $9,600), saving $21,120 a year and about 93 metric tons of CO₂e, with a system comparison table.