Compact Fluroscent Lights or Lamps (CFLs) are the latest innovations in energy saving lighting devices. Since long we have been using the incandescent bulbs with tungsten filament. These bulbs are energy guzzlers. Later, the fluorescent tubes (popularly known as "tube lights") came in the market and we switched over to these "tubelights" (particularly the 40 W tube). It is a gas discharge device that uses electricity to excite mercury vapour. Unlike the incandescent bulbs, tube lights need ballasts ("Chokes") to control the electric flow. Then came the CFLs, the real energy savers. Even though some mercury is present in CFLs, the level is very low and hence not considered a health hazard. The electromagnetic ballasts of tubelights are replaced in CFLs with electronic ballasts which are efficient and quick-starters. The CFLs come in 8W, 11 W, 14 W, 18 W, and 23 Watts. These produce the same luminosity of a 40W, 60 W, 75 W, 100 W, or a 125 W incandescent bu...