Accordance with commitments made under the environment, incandescent bulbs seventy five watts ceased to be sold Dec. 31, 2010. They consume four to five times more power than a low consumption and a lamp life of six to ten times shorter. Given their longevity, energy-efficient lamps finally cheaper than their elders they are poised to overtake.
The fluorescent eco friendly lighting has a life of 6000 h 12000 h depending on the extinction ignition frequency /. It should be avoided in rooms that are lit intermittently as WC, cellar or corridors (due to repeated firings). It is better to focus these bulbs to illuminate large volumes like the kitchen, living room or the garden.
The compact fluorescent bulb (CFL) uses mercury vapor at low pressure to produce ultraviolet (UV) invisible. When the lamp is lit, the mercury evaporates inside and becomes excited by the voltage generated. The UV rays excite in turn the internal phosphor coating which emits visible light. Some wonder about their safety, they emit UV radiation, electric and magnetic fields and the presence of mercury in lamps. In response to these concerns, Health Canada has analyzed:
These rays are produced by AFC quantity so small they pose no health risk. The results of the study by Health Canada revealed that when fluorescent or incandescent bulb is used at a distance of 30 cm or more, the UV emission is not a problem for most people.
Like any other home appliance, AFC emits electromagnetic fields (EMF). Health Canada has measured EMF to 20 centimeters (1 foot) lamps and, after comparing ministerial directives and international scientists concluded that emissions are well below the recommended maximum levels. EMFs from CFLs are not therefore a risk to health in accordance with the current international scientific opinion.
Mercury is the only existing element that produces UV wavelengths needed to operate the AFC. Although mercury is highly toxic, the amount used in a CFL is small, the equivalent of a pen tips. There is no health risk if the lamp is not broken.
Health risk in the event of lamp breakage, however, is very small: mercury vapors released are discharged from the well below the thresholds of intoxication airflow in quantities.
According to the European Union, low energy light bulbs are expected to save a house on average ¤ 50 per year and 135Kg of CO2 from 2013. The compact fluorescent lamp so turn a page in the history of electricity. Remember, once used, the file in one of the collection points provided for this purpose in many stores or disposal.