Why are CFLs more energy efficient?
CFLs are more energy efficient because they use less energy to provide the same amount of light. Fluorescent bulbs use discharge technology, which uses energy to create an arc of excited mercury vapor across the bulb. Less energy is needed to maintain this arc than to keep an incandescent filament burning. To provide less energy to the bulb, the bulb is designed to operate on high frequency electronics that reduce the energy used by the bulb.
