Like the incandescent bulb before it, the compact fluorescent (CFL ... circuitry that made these relatively efficient light bulbs work, and [mircemk] is here to show us some of them.

"The effort to make a compact fluorescent lamp was driven by the need to have small light bulbs that were more efficient than ...

including compact fluorescent lamps (CFL’s). CFL’s are commonly long, cylinder shaped and usually coated in white. They are considered energy-saving and are meant to substitute the older incandescent ...

Their replacement equivalents, compact fluorescent lightbulbs and light-emitting diode bulbs, are bright, use 75 to 80 percent less energy, and can save you $60 to $125 dollars per bulb in energy ...