Compare the cost of electricity for your current and proposed lighting systems, and estimate the cost of waiting to upgrade to the new system.
Calculate the energy savings you’ll gain by relamping your lighting system. Also find out how long it will take to recoup your full investment for the new system.
Compare the life-cycle costs for two different lamps.
Compare the watts per square foot for two different lighting systems.
Estimate the number of fixtures needed to light an area to a specified light level.
Replacing your current lamps? Use this calculator to estimate the number of fixtures you’ll need with replacement lamps. Also compare the difference in the amount of light between your current lamp and replacement lamp.
Can a dimming system help you save on energy costs? Use this calculator to estimate the wattage, energy reduction and cost savings generated by using a dimming system.