## Basic Energy Calculator

Calculate energy savings by relamping your lighting system.

Also calculate the return on investment of the new system.

Fill in all the fields and click "calculate".

**Your results will display below.**

## Lighting Layout Estimator

Estimate the number of fixtures needed to light an area to a specified light level.

Enter the following information and click "calculate."

**Your results will display below.**

## Fixture Replacement Estimator

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.

Enter the following information and click "calculate."

**Your results will display below.**

## Cost of Waiting Estimator

Compare the cost of electricity for your current and proposed lighting

systems, and estimate the cost of waiting to upgrade to the new system.

Enter the following information and click "calculate."

**Your results will display below.**

## Simple Life-Cycle Cost Estimator

Compare the life-cycle costs for two different lamps.

Enter the following information and click "calculate."

**Your results will display below.**