The Ademe makes a mixed impression on the LED




The environmental performance of LED lamps are far superior to incandescent lamps. However, these lights still have progress to make in terms of materials used, or impact on health. The Ademe is the point.
The market for LED lighting is booming since the early 2000’s and the development of diode-more powerful and are white in color. It is estimated to be 18.5 Bn € in 2016 by Zion Research that provides that this amount will rise to 30 Bn € by 2020, for all of the activities related to buildings and public lighting. For the time being, the market share of LED lamps in buildings is 35 %, but this proportion will rise quickly to exceed 60 % in three years. A growth conditioned by the price reduction and the supposed advantages of this technology.
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The Ademe (Agency for environment and mastery of energy) is focused on the subject to make an opinion argued. It tip first a set of recognized qualities LED bulbs, including a life immeasurably superior to other technologies : 40,000 hours against 2,000 for the halogen (which will be banned in 2018) and 8,000 for a compact fluorescent. On the aspect of energy efficiency then, it emphasizes that a LED isolation offers a very good performance, between 150 and 300 lumens/watt, whereas an LED bulb is more simple will oscillate between 75 and 140 lm/W. This variance is related to the heat produced by the elements contiguous to each other. In spite of everything, these figures are higher than those of cfls (60 lm/W) and their progress are not completed. Yields of 100 lm/W should quickly become the norm. Another advantage is the environmental impact reduced, thanks to a good balance : it is reduced by 75 % compared to incandescent lamps, and the progress made in the luminous efficiency and the lifetime may even decrease it.

 

Problem of recycling and health risk
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However, all is not rosy. The materials used to manufacture LEDS, including indium, a rare metal, can cause problems in recycling. The Ademe provides : “The LED manufacturers can act in providing for from the design, the disassembly and recycling of the source of LED (or lamp module)“. Another problem, the sanitary precautions to be applied in the face of certain types of lighting. From the month of October 2010, the Anses (national Agency of health security) had warned against the phenomenon of blue light emitted by some bulbs white. It recommended that “to avoid the use of these types of lamps in the places frequented by the children (…) , as well as for people who are sensitive to the light“. The risk of photobiological has prompted the international energy Agency to recommend, to his side, to stand at more than 20 centimetres away from such light sources, which are today prohibited the placing on the market in Europe.

 

Other concerns are discussed, in particular the incompatibility of certain lights, with dimmers, or a reduction of the energy efficiency of other lighting fixtures incorporating gadgets such as a Bluetooth transceiver, a speaker for playing the music or issuer LiFi. Additional features that increase the consumption. Ademe reports problems with overheating of certain lighting products of high-rise, high power and recalls, finally, that the cost of acquisition is still high for quality solutions, with a price of 10 to 20 euros per lamp. The agency concludes that : “The compact fluorescent lamps still light sources competitive“. An opinion that should inform the choice of consumers…




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