Usefulness of a power-backup system can be increased using CFLs

By installing CFLs on a home's power-backup system ("inverter" or "UPS") - instead of the typical fluorescent tube lamps or incandescent light bulbs - one can increase the number of illuminating lamps that can be installed on the backup system, and thus serve a higher number of rooms in the home, without sacrificing on the amount of illumination and without putting extra load on the UPS.

I realized this when I got an 800 VA UPS installed in my home a few weeks back.