You can now enter the approximate # of light bulbs in the home and the percentage of bulbs that are high-efficiency (CFL, LED, etc.).
See screen shot -
Write a Home Energy Report for your next client (takes only a few minutes): www.nachi.org/home-energy-report
For consumer-oriented information about Lighting, visit the free Home Energy Book http://book.energytool.nachi.org/lighting/lighting.
The eBook is linked with every Home Energy Report you generate.