How can you save money on lighting?

• A. Use only fluorescent bulbs
• B. Install occupancy sensors, install reflectors on fixtures and harvest daylight.
• C. Turn off lights when leaving
• D. Install more lights

Answer: (B)

Saving money on lighting comes from reducing energy use without sacrificing proper illumination. The strongest approach combines automatic control with efficient light management. Occupancy sensors turn lights off when spaces are unoccupied, so you don’t pay to light empty rooms. Reflectors on fixtures improve how well the light is directed, meaning you get more usable light from the same amount of power and can often use fewer fixtures or lower wattage. Harvesting daylight brings in natural light during the day, allowing you to rely less on artificial lighting and often using dimming controls to adjust as daylight changes. Together, these strategies yield ongoing energy and cost savings across a building.

Turning off lights when leaving helps, but it depends on people remembering to do it, and sensors and daylighting handle that automatically. Installing more lights increases costs and energy use, and using only fluorescent bulbs doesn’t guarantee savings or address when and how lighting is needed.