Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the mercury is excited by electricity, it emits ultraviolet (UV) light, which causes the ...

Hui has a problem with compact fluorescent light bulbs (CFLs), specifically electronic ones. He wants them out of people's homes as much as an increasing number of governments around the world ...

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 ...