Commercial lighting consumes almost 40 percent of the electricity used in buildings in the UNITED STATES and affects other systems through its electrical requirements and wasted heat. Retrofitting lighting systems with efficient light sources, fixtures, and controls can reduce lighting consumption, improve the environment, and affect the sizing of HVAC and other electrical equipment.
Lighting can be the fastest way to achieve energy savings since there are so many fixtures used for long hours. Whether in new construction or major renovation, fluorescent linear lighting dominates the commercial lighting market, particularly in offices, schools and some retail applications. The four foot 32 watt T8 lamp combined with an electronic ballast has essentially become standard practice.
Many lamps contain mercury and are considered hazardous waste under the Resource Conservation and Recovery Act (RCRA). Visit Environmental Protection Agency for more detailed information.Lighting Calculator