Energy Saving: Choose Which Bulb?

Halogen, CFL, neon… Among the different types of light bulbs, some are more economic than others. How to choose the most adapted to your accommodation?

The light RADIUS, there is a considerable selection of bulbs: incandescent (conventional and halogen), to (CFL, neon), luminescence led, all powers, forms, colors. A profusion that leaves the distraught layman when it seeks to equip its fixture in the most economical way. The purchase price should not be the only criterion of choice. Should be given its operating cost and life expectancy. The energy label will deliver valuable insights.

Bulbs Very Classes

As for appliances, the energy label is required for lamps. To be included next to energy efficiency (A graduate to the more sober to G for the more wasteful), light efficiency expressed in lumens per watt (lm/W), and optional, battery life in hours.

It is therefore now to dwell more on the number of lumens, which is the light output of the bulb rather than its number of watts. An efficient light bulb is the one that offers the most lumens for fewer watts.

CFL and fluorescent tubes are classified between B and G, and the bulbs between E and G. At the 1ER September 2016, there should more be the market that lamps classified A or B, exception made of those special nerve equipping some fixtures (for example, small peanut-shaped halogen bulbs).

Incandescent: Rare

Invented at the end of the 19th century bulbs produce light with incandescent a filament of tungsten (originally, it was a carbon filament), bathed in a gaseous atmosphere (argon, krypton, or xenon). On behalf of the protection of the environment, they will be banned from sale by 2010, although they still widely freedom of the city in the shops and that they are still good number of luminaires.

Inexpensive to purchase, they diffuse a light of a tone yellow, warm, very popular, and exist in many forms, glass transparent, frosted, Opal, color… Other side of the coin, they produce much more heat than light: 5-7% only of the energy used by an incandescent bulb is transformed into light, the 93 95% being converted into heat. Another major drawback, its life expectancy exceeds hardly 1 000 to 1 200 hours.

Even if conventional bulbs are still good number of luminaires, on behalf of the protection of the environment, since 2009, they gradually disappeared from store shelves. Thus, since 1ER September 2012, it is the turn of 25 W and 40 w to no longer be marketed (only stocks can be sold) in France.

Halogen: the Design

Halogen bulbs are the product of an evolution of the technique to incandescent bulbs. To reduce the wear of the filament, fill gas (iodine or methyl bromide) halogen bulbs that have the ability to capture the atoms of tungsten that stand out for the use of the filament. These particles are not deposited on the bulb wall, but return to the filament which is thickened in some places and thinned to others. Tapered areas eventually give way, but two to four times slower than the filaments of conventional bulbs, either at the end of 2 000from 4,000 hours.

These more powerful lamps, usually between 100 and 500 W for low voltages (mainly the streetlights), between 5 and 100 W for very low voltage supplied by a transformer (small spots, lights…), broadcast a whiter light and make better colors. However, they have the disadvantage of heat more (to withstand the heat, their walls are also in quartz, glass), to be fragile, it must be handled with gloves and do not use them in a polluted atmosphere) been to be very energy-intensive.

For example, a halogen lamp can consume only as much as a washing machine or dryer, either 300 kWh in a year, more than half of what a household spends for a dwelling of 80 m2 (on average 500 kWh). Note that the new halogen bulbs (one speaks of halogen lamps high efficiency) are less energy-intensive because, without being too frugal than the lamps low consumption, they consume up to 30% less than the first generation of halogen.

Even if many fixtures are equipped with halogen high power, today only the bulbs classified A, B or C and can be sold.

Cfls Or Neon Lights: the Most Fuel-Efficient

CFLs (referred to as bulbs low consumption or saving energy or d lamps ‘ luminescence, (the antique neon) fluorescent bulbs are a different technology than incandescent incandescent (conventional or halogen).) A CFL or a neon wall is covered with a fluorescent powder. The inside is filled with a gas and mercury low-pressure. Electric shock produces a radiation ultraviolet, converted to visible light by fluorescent powder. A button triggers the ignition and a small resistance stabilizes the current.

It lasts eight times longer and throughout his life (approximately 8,000 hours), we save about 800 kWh, or about €96 (for 1 kWh to €0.12).

On two hours a day for a year, she saves €4.24 and lasts eight times longer. Multiplied by the number of luminaires for shelter, we quickly see an interest to switch to CFLs, although they are more expensive to purchase.

Them the grievance to produce a light white described as a “clinic” and Miss elegance. On this ground, light bulbs low consumption as the neon lights have made progress, allowing them now to equip a bedside lamp. As the neon lights, they are refined, miniaturized, colored to fit any décor.

Attention, to avoid exposure to electromagnetic fields, these bulbs should be apart of at least 30 cm of every human being and once used, it should be to bring back them to the dealer or a recycling center because they contain mercury.

LED: the Most Revolutionary

Even better than CFLs, LED lamps (for light emitting diode: light-emitting diode according to hetongdiy.com) are used for a long time in remote controls of hi-fi equipment, TV, video, and the led lights red and green ignition or eve of TVs, witnesses computers.

They use very little, less than a watt, resist shocks and last very long, about 100,000 hours, or more than a decade! They are now found in emergency exit signs, traffic lights, headlights and even flashlights. For the home, they are sold in the decoration section. They illuminate a directive rather than diffuse way indeed, and are therefore more suited for decorative use, atmosphere or d ‘ extra, to the lighting of a room.

Still hard to find in stores and expensive to purchase, they are however cheap considering their life expectancy.

A Well-Maintained Bulb Worth Two…

At equal power, a clean bulb can produce light output 40% higher than that of a light bulb dirty. The cleanup effort is therefore rewarded if you take a few precautions. Once cooled the bulb must be dismantled.

The globe will be passed to water and SOAP and alcohol to burn (be careful, the nerve must be kept dry). A halogen bulb must not be handled with fingers (the fat deposited on quartz wall will grill and weaken the lamp), but with a cloth or absorbent paper.

To throw in the Right Bin

Selective sorting, and recycling of materials, is now some lamps. This is the reason why the Florenz (also known for green or environmental contribution, sometimes of ecotax) now increases the price of any CFL, tube neon or LED. It funds partnership, the industry of processing of these products at the end of their lives. Its amount, €0.14 (€0.12 for LED lamps), included in the price, however must appear clearly on the label.

If incandescents (including halogens) continue to be involved to refuse to cremate, CFLs, neon and LED will be returned to the seller at the time of the purchase of new equipment. To facilitate the return of these lamps in good network of recycling, furniture collection with two bins, one for light bulbs, another for the tubes, are progressively installed in supermarkets and hardware stores.

 

Gallery

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