Economic Benefit of Cfls

CFLs, being from the fluorescent tubes have broadly the same performance as the tubes. They are however a little lower. One of the highlights of the CFLs is able to substitute for conventional incandescent bulbs.


  • fits directly on the nerve to screw or bayonet and does not buy new fixtures (except if the luminaire is equipped with a drive of energy), but unlike the luminescent tubes (improperly called “neon tubing”) we change the entire starter and ballast and not the simple tube.
  • has a higher than a traditional bulb purchase cost, but lasts 6 000 to 12 000 hours (depending on the number of ignitions and extinctions approximately 5 to 6 years, 6 months for a source a incandescent),
  • uses about 75% less energy than standard incandescent bulbs.
  • The incandescent light bulb wastes more than 10% of electricity into heat, and 80% with infrared radiation, the CFL only 25%.
  • A 25 watt CFL has the same intensity as a regular bulb of 80 to 100 watts, depending on its quality.
  • According to, LED flashlights are usually found in a House some 30 light bulbs that consume about $ 200 annually. With a CFL, it only costs $ 50, even if all uses cannot be replaced by a fluorescence (problem ignition and extinguishing) source
  • In most industrialized countries, energy companies encourage buying bulbs certified by offering consumers discounts of $ 5 per $ 10 purchase.
  • During his lifetime, a single 20 W CFL saving 1000 kWh, thus avoiding:
    • emissions (equivalent to 60 kg of carbon dioxide and 0.4 kg of sulphur oxide)
    • the generation of waste associated with the production of corresponding energy (equivalent to 150 cm3 of nuclear waste)
    • unnecessary consumption of fossil resources (a conventional power plant would consume 210 litres of heating to produce 1000 kWh saved)

However these electric energy savings are less felt during the winter if the House is heated with electricity: indeed electric heating thermostat maintains a constant temperature throughout the House, and the heat that is no longer produced by the lamps will be heating. So the energy savings in question are valid only when the heating is off.

Many properties of these lamps low consumption depend on the quality of the lamps: the gain factor is usually 4, a lamp to fluorescence of 25W illuminating as to a 100W incandescent lamp. In addition some lamps have a bulb (to give the lamp a zone and not stick lamp) which absorbs 30% of the luminous flux. What is the life expectancy of these lamps is their number of ignition (at least 6 000 cycles of ignition and extinction).