Incandescent, halogen, low consumption or LED: clarification is needed…
Types of bulbs
Incandescent. The classic lamp, diffused incandescent, a warm yellow light, but consumes a lot of energy. We know: it gives off almost 95% of heat for only 5% of light. She should totally disappear from here rays 2010 (see box).
Life expectancy: 1000 to 1200 hours. Price: €1 approx.
Halogen. It broadcasts a white light that makes colors better, but very hot. A lamppost can consume 300 kWh per year, or almost as much as the total of 80 square meters housing lighting. Fortunately, efforts have been made and we find a B energy class halogen (knowing that the majority lies rather in class D).
Life expectancy: 2000 to 4000 hours. Price: €6 approx.
CFL. “Fluorescent lamp”, “power saving” or “low-energy”, are we talking about the same thing. It gives off 80% of light for 20% of heat. Long criticized for its poor return of light and its slowness to ignition, the CFL lamp has improved. She puts some time before reaching his luminous omnipotence, that’s why we don’t install not priority in moving parts, more requested.
Life expectancy: 8000 to 10000 hours. Price: €8.
The LED. It is a light-emitting diode used originally for the lights on the remote controls or witnesses of eve of computers or televisions. Now, she illuminates some corners of the House: the dressing room, the work plan of the kitchen or the interiors of closets. OSRAM invited her home by creating the Dot – It, this adhesive minilampe which lights up with the tips of the fingers. The big advantage of the LED, it is life expectancy which can reach 100000 hours. If for the moment it is not powerful enough to provide the general lighting of the House, many rely on it for the future.
How to choose?
By reading the label. As for appliances, the energy label is required on the packaging of the bulbs. They are listed according to their energy classification (of A for the most economical, up to G for the most energy-intensive). On it, there are also wattage, efficiency in lumens per watt, and life.
The economic. A folk bulb can see its brightness decrease of 40%. Every three months, we clean it with a cloth moistened with alcohol to burn.
The ecological. We think to recycle its used CFLs and LEDs lamps dropping them in the containers available at all major distributors. Incandescent and halogen lamps can be thrown in the regular trash.
Numbers in stock
1900 million tonnes of CO2 globally: that’s what lighting creates according to the International Energy Agency.
68 percent of the French have at least had a light bulb low consumption in 2007.
180 million light bulbs are sold each year (of which 152 million incandescent).
350 kWh for lighting: this is what every french household consumes about all year, according to the Agency for the development and control of energy (Ademe).
A death foretold
During the grenelle Environment Forum, a convention was signed between the Ministry of ecology, energy, sustainable development and the development of the territory, distributors (the Federation of trade and Distribution, the Federation of DIY stores companies), EDF and ADEME, as well as partnership (the eco-body responsible for the collection and recycling of used lamps). The goal? A withdrawal of the sale of incandescents by 2010, but also a market share lamps multiplied by three, energy-saving lamps energy consumption reduced by half and their recycling increased, including through the installation of furniture collection in stores.
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