Yes, but a CFL bulb, if that's what you are suggesting,is hardly a replacement for the new technology of LED's.
Instant on, thousands of hours of reliable output, constant color temperature,or variable,in some models,dimmable output,almost zero heat output,lightweight construction..
Makes a CFL look like a Tallow Candle by comparison.
What about the CRI of LED's? "white" LEDs are far from a continuous spectrum, even worse than CFL's.